Word Finder - hairs

definition

A pigmented filament of keratin which grows from a follicle on the skin of humans and other mammals.

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The collection or mass of such growths growing from the skin of humans and animals, and forming a covering for a part of the head or for any part or the whole body.

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In the western world, women usually have long hair while men usually have short hair.

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A slender outgrowth from the chitinous cuticle of insects, spiders, crustaceans, and other invertebrates. Such hairs are totally unlike those of vertebrates in structure, composition, and mode of growth.

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A cellular outgrowth of the epidermis, consisting of one or of several cells, whether pointed, hooked, knobbed, or stellated.

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Internal hairs occur in the flower stalk of the yellow frog lily (Nuphar).

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A locking spring or other safety device in the lock of a rifle, etc., capable of being released by a slight pressure on a hair-trigger.

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Haircloth; a hair shirt.

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Any very small distance, or degree; a hairbreadth.

example

Just a little louder please—turn that knob a hair to the right.

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Complexity; difficulty; quality of being hairy

Tail rather short, clothed with short depressed hairs.

The spines are mixed with long soft hairs.

They include three genera, of which the first is represented by the Canadian porcupine (Erethizon dorsatus), a stout, heavily-built animal, with long hairs almost or quite hiding its spines, four frontand five hind-toes, and a short, stumpy tail.

The gall is cup-shaped, and its outer surface is crumpled and covered with small warts and hairs.

They are of a lighter build than the ground-porcupines, with short, close, many-coloured spines, often mixed with hairs, and prehensile tails.

Flowers with nectar concealed by pouches, hairs, &c. Regular flowers predominate, e.g.

It bears a group of long setose hairs the bases of which are connected with the nerve fibre.

The skin is clothed with a thick coat of coarse black hair of a bristly nature, but there are a few whitish hairs on the face and in the groin.

These hairs entirely disappear with increasing age.

These hairs give the leaf undersides a silvery-white color.

From the same stock may be derived the Abyssinian breed, in which the ears are relatively large and occasionally tipped with long hairs (thus recalling the tufted ears of the jungle-cat).

Other hairs consist of a chain of cells; others, again, are branched in various ways; while yet others have the form of a flat plate of cells placed parallel to the leaf surface and inserted on a stalk.

The cells of hairs may have living contents or they may simply contain air.

A very common function of hairs is to diminish transpiration, by creating a still atmosphere between them, as in the case of the sunk stomata already mentioned.

In one type they may take the form of specially-modified single epidermal cells or multicellular hairs without any direct connection with the vascular system.

Multitudes of such hairs on the branches of the roots cause the entry of great quantities of water, which by a subsequent similar osmotic action accumulates in the cortex of the roots.

One of these hairs can be seen to be penetrated at a particular spot, and the entering body is then found to grow along the length of the hair till it reaches the cortex of the root.

Six sensitive hairs spring from the upper surface of the lobes, three from each; when one of these is touched the two lobes rapidly close, bringing their upper surfaces into contact and imprisoning anything which for the moment is between them.

These hairs often occur in tufts, and are so colored and arranged that they were long taken for Fungi and placed in the genus Erineum.

The cells of the staminal hairs of Tradescantia air ginica contain a large sap-cavity across which run, in.

These occur on the tips of tendrils and on the tentacles of Drosera; (2) sensitive papillae found on the irritable filaments of certain stamens; and (3) sensitive hairs or bristles on the leaves of Dionaea muscipula and Mimosa pudicaall of which are so constructed that any pressure exerted on them at once reacts on the protoplasm.

Cuculus canorus and trogons, is often lined with the broken-off hairs of these caterpillars, which, penetrating the cuticle, assume a regular spiral arrangement, due to the rotatory motion of the muscles of the gizzard.

Clinging to her hairs they are carried to the nest, where they bore into the body of a bee or wasp larva, and after a moult become soft-skinned legless maggots.

The wings, which are not capable of being folded, are usually transparent, but occasionally pigmented and adorned with coloured spots, blotches or bands; the wing-membrane, though sometimes clothed with minute hairs, seldom bears scales; the wing-veins, which are of great importance in the classification of Diptera, are usually few in number and chiefly longitudinal, there being a marked paucity of cross-veins.

In addition there is in this particular genus, as indeed in many others, a long tubular spur or horn projecting downwards from the back of the lip, whose office it is to secrete and store a honeyed juice; the forepart of the lip forms an expanded plate, usually larger and more brightly coloured than the other parts of the flower, and with hairs or ridges and spots of various kinds according to the species.

The seeds are minute and innumerable; they contain a small rudimentary embryo surrounded by a thin loose membraneous coat, and are scattered by means of hygroscopic hairs on the inside of the valves which by their movements jerk out the seeds.

These later stages, comprising the greater part of the larval history, are adapted for an inquiline or a parasitic life, where shelter is assured and food abundant, while the short-lived, active condition enables the newly-hatched insect to make its way to the spot favourable for its future development, clinging, for example, in the case of an oil-beetle's larva, to the hairs of a bee as she flies towards her nest.

Microscopic examination of a specimen of mature cotton shows that the hairs are flattened and twisted, resembling somewhat in general appearance an empty and twisted fire hose.

The chief of these silk cottons is kapok, consisting of the hairs borne on the interior of the pods (but not attached to the seeds) of Eriodendron anfractuosum, the silk cotton tree, a member of the Bombacaceae, an order very closely allied to the Malvaceae.

There remains one other important group, the so-called " kidney " cottons in which there are only long hairs, and the seed easily comes away clean as with " Sea Island," but, instead of each seed being separate, the whole group in each of the three compartments of the capsule is firmly united together in a more or less kidney-shaped mass.

Seeds covered with long hairs only, flowers yellow, turning to red.

It yields the most valuable of all cottons, the hairs being long, fine and silky, and ranging in length from to 22 in.

It is usually regarded as the standard Egyptian cotton; the lint is yellowish brown, the seeds black and almost smooth, usually with a little tuft of short green hairs at the ends.

Small tufts of tactile hairs or papillae are sometimes observed in small number at the tip of the head; sometimes longer hairs, apparently rather stiff, are seen on the surface, very sparingly distributed between the cilia, and hitherto only in a very limited number of small specimens.

The English setter should have a silky coat with the hair waved but not curly; the legs and toes should be hairy, and the tail should have a bushy fringe of hairs hanging down from the dorsal border.

The nectarine is a variation from the peach, mainly characterized by the circumstance that, while the skin of the ripe fruit is downy in the peach, it is shining and destitute of hairs in the nectarine.

Some are black, very thin and curved like threads or hairs (trichites); often a group of these is seated on a small crystal of augite or magnetite and spreads outwards on all sides.

It is known as the silk rubber tree, probably on account of the silky hairs which are attached to the seeds.

Scattered hairs cover the body.

In it the hairs are confined to the dorsal middle line and the creeping setae are hooked, of a finer structure than in Chaetosoma, and situated so far forward that the vagina opens amongst them.

This lies in the anterior part of a groove fringed with hairs on the inferior petal.

The eggs, laid on the hairs, and known as "nits," hatch in about eight days, and the lice are full grown in about a month.

The irritation is caused by the rostrum of the insect being inserted into the skin, from which the blood is rapidly pumped up. A third human louse, known as the crab-louse (Phthirius pubis) is found amongst the hairs on other parts of the body, particularly those of the pubic region, but probably never on the head.

The tail is cylindrical, with some bushy elongation of the hairs near the end, but not forming a distinct tuft.

The whole of the green parts of the plant are covered with long soft hairs which exude a viscid juice, giving the surface a moist glutinous feeling.

The hairs are multicellular, and of two kinds, one branching and ending in a fine point, while the other, unbranched, terminates in a clump of small cells.

It is regarded as a modified zooecium, the polypide of which has become vestigial, although it is commonly represented by a sense-organ, bearing tactile hairs, situated on what may be termed the palate.

The fur is short, dense and rather soft to the touch, and composed of an extremely fine and close under-fur, and of longer hairs which project beyond this, each of which is very slender at the base, and expanded, flattened and glossy towards the free end.

The tail is short, broad and depressed, and covered with coarse hairs, which in old animals generally become worn off from the under (From Gould's Mammals of Australia.) Platypus.

The mouth of this chamber is protected by a ring of hairs pointing downwards, which allow the entrance but prevent the escape of small flies; after fertilization of the pistils the hairs wither.