Word Finder - rat

definition

A medium-sized rodent belonging to the genus Rattus.

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Any of the numerous members of several rodent families (e.g. voles and mice) that resemble true rats in appearance, usually having a pointy snout, a long, bare tail, and body length greater than about 12 cm, or 5 inches.

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A person who is known for betrayal; a scoundrel; a quisling.

example

What a rat, leaving us stranded here!

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An informant or snitch.

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A scab: a worker who acts against trade union policies.

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A person who routinely spends time at a particular location.

example

He loved hockey and was a devoted rink rat.

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A wad of shed hair used as part of a hairstyle.

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A roll of material used to puff out the hair, which is turned over it.

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Vagina.

example

Get your rat out.

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Short for muskrat.

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(usually with “on” or “out”) To betray a person or party, especially by telling their secret to an authority or an enemy; to turn someone in.

example

He is going to rat us out!

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To work as a scab, going against trade union policies.

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(of a dog, etc.) To kill rats.

Rat did kill baby pigeons.

You've got more than one rat to worry about.

Once you're an auction rat, it sticks with you.

The only wild mammalia in the island are the hedgehogs, two species of weasel, the Norway rat, and the domestic mouse.

At least four species of fleas (including Pulex irritans) which infest the common rat are known to bite man, and are believed to be the active agents in the transmission of plague from rats to human beings.

The only indigenous land mammalia are a small rat and a few curious species of bats.

The rats, which had been given both human and rat retina cells, retained the cells and did n't go blind.

What a great idea for your first born or rug rat.

Brazil has three groups of animals similar to the common rat - the Capromydae, Loncheridae and Psammoryctidae- the best known of which is the " tuco-tuco " (Ctenomys brasiliensis), a small burrowing animal of Rio Grande do Sul which excavates long subterranean galleries and lives on roots and bulbs.

This long-tailed rat, originally a native of India, would seem to have first penetrated to all parts of the world and to have nearly or quite exterminated the indigenous rats.

No adequate investigation of this subject has yet been made, but some observations made by the author of this article, on the piebald black and white rat, show that differences connected with the microscopic structure exist.

Thus these albinoes exhibit a pattern of pink skin similar in form with the black pattern of the piebald rat.

The number of rat infestations is reportedly increasing and the brown rat is a major problem in urban areas.

The mechanism and relevance of these findings in the rat carcinogenicity study for humans are not yet clarified.

Selective breeding of the Brown Rat has produced the albino laboratory rat.

We seem to get caught up in the rat race of life and forget why we work for success.

The small figure by the machine saluted smartly and beamed, if a rat skull could beam.

Rat examination Recent changes in protocol have put a ban on the LD50 test, save in exceptional circumstances.

Rat Scabies drummed on the debut and only LP so that might explain why you saw them with The Damned.

The brown rat migrated westwards from Central Asia early in the 18th century, and is believed to have first reached Great Britain about 1730.

After this followed the advance of the more powerful brown rat.

The wild mouse, rat and rabbit are self-coloured, but the domesticated forms include various piebald patterns, such as spotted forms among mice, and the familiar black and white hooded and dorsal-striped pattern of some tame rats.

Haacke has described a single albino rat, in which he states that the hairs of the shoulder and mid-dorsal regions were of a different texture from those of the rest of the body.

But the author of this article has quite recently reared some albinoes in which the familiar shoulder hood and dorsal stripe of the piebald rat is perfectly obvious, in spite of the absence of the slightest pigmentation.

The experiments of the latter author show that, if a gametically pure black rat be crossed with an albino derived from a piebald black and white ancestry, all the offspring in successive litters will be black; but if the same black parent be crossed with albinoes extracted from parents of which one or both are grey, then both grey and black members will appear in the successive litters.

Even in Greek, /itKEXoL is now sometimes used instead of nKE%L&rat.

The ichneumon (Pharaohs rat) is common and often tame; the coney and jerboa are found in the eastern mountains.

It is about the size of a rat, and has long soft thick fur, of a uniform grizzled brown, except when (as is not uncommon) it is black.

A rat, he declared, was gnawing at the pit of his stomach.

He had also the opportunity of reading the first act of the new tragedy before the duke of Weimar at Darmstadt in December 1784, and, as a sign of favour, the duke conferred upon him the title of "Rat."

In 1742 he acquired, as a consolation for the public career he had missed, the title of kaiserlicher Rat, and in 1748 married Katharina Elisabeth (1731-1808), daughter of the Schultheiss or Biirgermeister of Frankfort, Johann Wolfgang Textor.

The ferret, rabbit, cat, rat, mouse and two kinds of bat have become naturalized.

The rat and mouse family is only too numerous.

The station was formerly on Rat Island (within the bay), which is now used as a public deposit for inflammables.

A chevrotain is found in Balabac. The house rat, introduced by man, is a common nuisance, and mice occasionally seriously damage sugar-cane and rice.

In the older and larger towns it soon went beyond what the bishops thought proper to tolerate; conflicts ensued; and in the 13th century several bishops obtained decrees in the imperial court, either to suppress the Rat altogether, or to make it subject to their nomination, and more particularly to abolish the Ungeld, as detrimental to episcopal finances.

These gilds would, where they existed, no doubt also influence the management of town affairs; but nowhere has the Rat, as used to be thought, developed out of a gild, nor has the latter anywhere in Germany played a part at all similar in importance to that of the English gild merchant, the only exception being for a time the Richerzeche, or Gild of the Rich of Cologne, from early times by far the largest, the richest, and the most important trading centre among German cities, and therefore provided with an administration more complex, and in some respects more primitive, than any other.

The craft-gilds had remained subordinate to the Rat, but by-and-by they claimed a share in the government of the towns.

There was also known an arrangement corresponding to the German alte and sitzende Rat, viz.

Healthy rats contracted plague from infected rats when the only apparent means of communication between the two was the rat flea (pulex cheopis).

In 21 experiments out of 38, 55% of healthy rats living in flea-proof cages have contracted plague after receiving fleas collected from rats either dead or dying of septicaemic plague; consequently it is proved the rat flea can transmit plague from rat to rat.

Guinea-pigs set free in plague-infected houses become infected with the rat flea and develop plague in a certain percentage.

The last-named official soon confined himself to the judicial magisterial office, and a further increase in the numbers of the council having taken place by the appointment of 8 nominees of the king, a municipal council of 34, under the direction of the senior consul or burgomaster, dealt with matters exclusively civic. Later this council (the kleine Rat) was increased to 42 members, 8 of whom belonged to the artisan class.

Among animals, the European rat, goat and pig are naturalized in New Zealand, where they multiply to such an extent as to injure and probably exterminate many native productions.

Rats and mice swarm, both kinds and individuals being numerous, but few present much peculiarity, a bamboo rat (Rhizomys) from the base of the eastern Himalaya being perhaps most worthy of notice.

Thus the serum of the white rat, which is immune to anthrax, kills the bacillus; whereas the serum of the guinea-pig, which is susceptible, has no such effect.

A series of the apes, arranged from lower to higher orders, shows gradations from a brain little higher that that of a rat, to a brain like a small and imperfect imitation of a man's; and the greatest structural break in the series lies not between man and the manlike apes, but between the apes and monkeys on one side, and the lemurs on the other.

At a later period he talked of "dying of rage, like a poisoned rat in a hole"; for some time, however, he was buoyed up by feeble hopes of a restoration to England.

It is deficient in mammals, of which the only varieties are the rat and bat.

This absence of mammalian life in oceanic islands extends even to New Zealand, where the indigenous mammals comprise only two peculiar species of bats, the so-called Maori rat having been introduced by man.