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An amine containing three amido groups.

ving a valence of three; trivalent; sometimes, in a specific sense, having three hydroxyl groups, whether acid or basic; thus, glycerin, glyceric acid, and tartronic acid are each triatomic.

An extensive group of wormlike animals characterized by being more or less covered with cilia.

prefix or combining form (also used adjectively) indicating the presence of three methyl groups.

eristic herringlike odor. It is regarded as a substituted ammonia containing three methyl groups.

Gun cotton; -- so called because regarded as containing three nitro groups.

cales which are used in the manufacture of fancy work. Called also, locally, black perch, grouper, and flasher.

A group of three notes sung or played in the tree of two.

epresentation of such a memorial, as on a medal; esp. (Arch.), an ornament representing a group of arms and military weapons, offensive and defensive.

A group of gastropod mollusks having a tubular shell. Vermetus is an example.

A rare element of the chromium group found in certain minerals, as wolfram and scheelite, and isolated as a heavy steel-gray metal which is very hard and infusible. It has both acid and basic properties. When alloyed in small quantities with steel, it greatly increases its hardness. Symbol W (Wolframium). Atomic weight…

A group of roving Turanian tribes occupying Eastern Siberia and the Amoor valley. They resemble the Mongols. [Written also Tungooses.]

A group of races or tribes inhabiting Asia and closely related to the Mongols.

An extensive group of worms which have the body covered externally with vibrating cilia. It includes the Rhabdocoela and Dendrocoela. Formerly, the nemerteans were also included in this group.

to a number of individuals; hence, the ideal representation of a species, genus, or other group, combining the essential characteristics; an animal or plant possessing or exemplifying the essential characteristics of a species, genus, or other group. Also, a group or division of animals having a certain typical or char…

Combining or exhibiting the essential characteristics of a group; as, a typical genus. -- Typ"ic*al*ly, adv. -- Typ"ic*al*ness, n.

allied to Dinoceras. This name is sometimes used for nearly all the known species of the group. See Dinoceras.

structure; as, an unformed, or unorganized, ferment. Unformed stars (Astron.), stars not grouped into any constellation; informed stars. See Sporades.

An extensive group of mammals including all those that have hoofs. It comprises the Artiodactyla and Perissodactyla.

reciprocal influence on each other, and are not mere aggregations of more or less complex groups; -- distinguished from the dualistic theory.