Part 302

Dip`lo*stem"o*nous (?), a. [Gr. &?; double + &?; the warp, a thread.] (Bot.) Having twice as many stamens as petals, as the geranium. R. Brown.

Dip`lo*stem"o*ny (?), n. (Bot.) The condition of being diplostemonous.

||Dip*neu"mo*na (?), n. pl. [NL., fr. Gr. &?; = &?; lung.] (Zoöl.) A group of spiders having only two lunglike organs. [Written also Dipneumones.]

||Dip"no*i (?), n. pl. [NL., fr. Gr. &?; &?; with two breathing apertures; di- = di`s- twice + &?; breath.] (Zoöl.) A group of ganoid fishes, including the living genera Ceratodus and Lepidosiren, which present the closest approximation to the Amphibia. The air bladder acts as a lung, and the nostrils open inside the mouth. See Ceratodus, and Illustration in Appendix.

Dip"o*dy (?), n.; pl. Dipodies (#). [Gr. &?;, fr. &?; two-footed; di- = di`s- twice + &?;, &?;, foot.] (Pros.) Two metrical feet taken together, or included in one measure. Hadley.

Trochaic, iambic, and anapestic verses . . . are measured by dipodies.

W. W. Goodwin.

Di*po"lar (?), a. [Pre. di- + polar. Cf. Bipolar.] Having two poles, as a magnetic bar.

Dip"pel's oil` (?). (Chem.) [From the name of the inventor.] See Bone oil, under Bone.

Dip"per (?), n. 1. One who, or that which, dips; especially, a vessel used to dip water or other liquid; a ladle.

2. (Zoöl.) (a) A small grebe; the dabchick. (b) The buffel duck. (c) The water ouzel (Cinolus aquaticus) of Europe. (d) The American dipper or ouzel (Cinclus Mexicanus).

The Dipper (Astron.), the seven principal stars in the constellation of the Great Bear; popularly so called from their arrangement in the form of a dipper; -- called also Charles's Wain. See Ursa Major, under Ursa.

Dip"ping, n. 1. The act or process of immersing.

2. The act of inclining downward.

3. The act of lifting or moving a liquid with a dipper, ladle, or the like.

4. The process of cleaning or brightening sheet metal or metalware, esp. brass, by dipping it in acids, etc.

5. The practice of taking snuff by rubbing the teeth or gums with a stick or brush dipped in snuff. [U.S.]

Dipping needle, a magnetic needle suspended at its center of gravity, and moving freely in a vertical plane, so as to indicate on a graduated circle the magnetic dip or inclination.

Di`pris*mat"ic (?), a. [Prefix di- + prismatic.] Doubly prismatic.

Di`pro*par"gyl (?), n. [Prefix di- + propargyl.] (Chem.) A pungent, mobile, volatile liquid, C6H6, produced artificially from certain allyl derivatives. Though isomeric with benzine, it is very different in its chemical relations. Called also dipropinyl.

Di*pro"pyl (?), n. [Pref. di- + propyl.] (Chem.) One of the hexane paraffins, found in petroleum, consisting of two propyl radicals. See Hexane.

||Di*pro"to*don (?), n. [Gr. di- = di`s- twice + &?; first + 'odoy`s, 'odo`ntos, tooth.] (Paleon.) An extinct Quaternary marsupial from Australia, about as large as the hippopotamus; -- so named because of its two large front teeth. See Illustration in Appendix.

Dip"sas (?), n. [L., fr. Gr. &?;, fr. &?; thirst.] 1. A serpent whose bite was fabled to produce intense thirst. Milton.

2. (Zoöl.) A genus of harmless colubrine snakes.

Dip*set"ic (?), a. [Gr. &?;.] Tending to produce thirst. Wright.

Dip`so*ma"ni*a (?), n. [NL., fr. Gr. &?; thirst + &?; mania.] (Med.) A morbid an uncontrollable craving (often periodic) for drink, esp. for alcoholic liquors; also improperly used to denote acute and chronic alcoholism.

Dip`so*ma"ni*ac (?), n. One who has an irrepressible desire for alcoholic drinks.

Dip`so*ma*ni"a*cal (?), a. Of or pertaining to dipsomania.