Search the Dictionary

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.

o 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 chara…

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.

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

An element of the chromium group, found in certain rare minerals, as pitchblende, uranite, etc., and reduced as a heavy, hard, nickel-white metal which is quite permanent. Its yellow oxide is used to impart to glass a delicate greenish-yellow tint which is accompanied by a strong fluorescence, and its black oxide is us…

An extensive artificial group of birds including the wading, swimming, and cursorial birds.

A rare element of the nitrogen-phosphorus group, found combined, in vanadates, in certain minerals, and reduced as an infusible, grayish-white metallic powder. It is intermediate between the metals and the non-metals, having both basic and acid properties. Sumbol V (or Vd, rarely). Atomic weight 51.2.…

Of or pertaining to a verb; as, a verbal group; derived directly from a verb; as, a verbal noun; used in forming verbs; as, a verbal prefix. Verbal inspiration. See under Inspiration. -- Verbal noun (Gram.), a noun derived directly from a verb or verb stem; a verbal. The term is specifically applied to infinitives, an…

ng the parasitic worms, or helminths, together with the nemerteans, annelids, and allied groups. By some writers the branchiopods, the bryzoans, and the tunicates are also included. The name was used in a still wider sense by Linnæus and his followers.

A group of minerals having, a micaceous structure. They are hydrous silicates, derived generally from the alteration of some kind of mica. So called because the scales, when heated, open out into wormlike forms.

A group of butterflies including those known as virgins, or gossamer-winged butterflies.

A dyestuff of the induline group, made from aniline, and used as a substitute for indigo in dyeing wool and silk a violet-blue or a gray-blue color.

In the greater part of Russia, a division for local government consisting of a group of mirs, or village communities; a canton.