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A hypothetical compound, C2H2N4 which may be regarded as benzene with four CH groups replaced by nitrogen atoms; also, any of various derivatives of the same. There are three isomeric varieties.

ubstance, CH2N4, which may be regarded as pyrrol in which nitrogen atoms replace three CH groups; also, any of various derivatives of the same.

f the Teutonic languages, or the peoples who speak these languages. Teutonic languages, a group of languages forming a division of the Indo-European, or Aryan, family, and embracing the High German, Low German, Gothic, and Scandinavian dialects and languages. -- Teutonic order, a military religious order of knights, e…

A rare metallic element of the aluminium group found in some minerals, as certain pyrites, and also in the lead-chamber deposit in the manufacture of sulphuric acid. It is isolated as a heavy, soft, bluish white metal, easily oxidized in moist air, but preserved by keeping under water. Symbol Tl. Atomic weight 203.7.…

Myxophyta from the Tallophyta as a distinct phylum the latter is treated as the lowermost group in the vegetable kingdom.

Any one of a group of lizards of the Gecko tribe, having the toes broad, and furnished with a groove in which the claws can be concealed.

A group of fossil saurians having biconcave vertebræ and the teeth implanted in sockets.

it being the first letter of the Greek qa`natos, death. Theta function (Math.), one of a group of functions used in developing the properties of elliptic functions.

Of or pertaining to a group of carnivores, including the wovels and the dogs.

One of a group of fishes having the ventral fins placed beneath the thorax or beneath the pectorial fins.

A group of houses in the country; a small village; a hamlet; a dorp; -- now chiefly occurring in names of places and persons; as, Althorp, Mablethorpe. "Within a little thorp I staid." Fairfax. Then thorpe and byre arose in fire. Tennyson.

n throw large quantities of paper, confetti, paper ribbons, or the like onto the parading group. The name comes form the ticker tape originally thrown onto the parade when it passed stockbrokers' offices in lower Manhattan, before stock tickers became obsolete.

An extinct group of Mammalia found fossil in the Eocene formation. The species are related to the carnivores, ungulates, and rodents. Called also Tillodonta.

the root of the upper teeth; to laugh with restraint, or without much noise; to giggle. A group of tittering pages ran before. Longfellow.

The Indians of a seafaring group of tribes of southern Alaska comprising the Koluschan stock. Previous to deterioration from contact with the whites they were the foremost traders of the northwest. They built substantial houses of cedar adorned with totem poles, and were expert stone carvers and copper workers. Slaver…

An extensive artificial group of gastropods comprising all those which have a spiral shell and the foot attached to the base of the neck.

A group of passerine birds having the syrinx at the lower end of the trachea.

-- Tree lark (Zoöl.), the tree pipit. [Prov. Eng.] -- Tree lizard (Zoöl.), any one of a group of Old World arboreal lizards (Dendrosauria) comprising the chameleons. -- Tree lobster. (Zoöl.) Same as Tree crab, above. -- Tree louse (Zoöl.), any aphid; a plant louse. -- Tree moss. (Bot.) (a) Any moss or lichen growi…

is three. Triads of the Welsh bards, poetical histories, in which the facts recorded are grouped by threes, three things or circumstances of a kind being mentioned together. -- Hindoo triad. See Trimurti.

An amide containing three amido groups.