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One of a species of coccoliths, having an oval discoidal body, with a thick strongly refracting rim, and a thinner central portion. One of them measures about

A division of acalephs or jellyfishes, including most of the large disklike species. -- Dis*coph"o*rous, a.

around the eyes. Disk engine, a form of rotary steam engine. -- Disk shell (Zoöl.), any species of Discina.

Pertaining to two coördinate species or divisions.

of direction; detachment. [Obs.] His power went out in such distractions as Beguiled all species. Shak.

To divide or separate, as into classes, orders, kinds, or species; to classify; to assort, as specimens, letters, etc.

Assigning the species of a general term.

Different in kind or species; diverse. [Obs.] Every sect of them hath a divers posture. Bacon. Thou shalt not sow thy vineyard with divers seeds. Deut. xxii. 9.

To separate into species; -- said of a genus or generic term.

The separation of a genus into its constituent species.

A genus of plants (Rumex), some species of which are well-known weeds which have a long taproot and are difficult of extermination.

n in the case; any material substance on which the thoughts of men are represented by any species of conventional mark or symbol. Saint Luke . . . collected them from such documents and testimonies as he . . . judged to be authentic. Paley.

A hardy species of British grass (Cynosurus cristatus) which abounds in grass lands, and is well suited for making straw plait; -- called also goldseed.

The Arctic or blue fox; -- a name also applied to species of the genus Cynalopex.

A small shark, of many species, of the genera Mustelus, Scyllium, Spinax, etc.

A species of sunfish (Lepomis pallidus), common in the United States; -- called also blue sunfish, and copper-nosed bream.

A species of palm tree (Hyphæne Thebaica), highly valued for the fibrous pulp of its fruit, which has the flavor of gingerbread, and is largely eaten in Egypt and Abyssinia. [Written also doum palm.]

s), which makes a droning noise while flying. The name is also applied to allied American species, as the June bug. Called also dorr, dorbeetle, or dorrbeetle, dorbug, dorrfly, and buzzard clock.

A small European rodent of the genus Myoxus, of several species. They live in trees and feed on nuts, acorns, etc.; -- so called because they are usually torpid in winter.

cided; not easy to be defined, classed, or named; as, a doubtful case, hue, claim, title, species, and the like. Beauty is but a vain and doubtful good. Shak. Is it a great cruelty to expel from our abode the enemy of our peace, or even the doubtful friend [i. e., one as to whose sincerity there may be doubts] Bancroft…