Subaltern genus(Logic), a genus which may be a species of a higher genus, as the genus denoted by quadruped, which is also a species of mammal.Summum genus[L.] (Logic), the highest genus; a genus which can not be classed as a species, as being.

(||Ge"nys) n. [NL., fr. Gr. ge`nys the under jaw.] (Zoöl.) See Gonys.

(Ge`o*cen"tric Ge`o*cen"tric*al) a. [Gr. ge`a, gh^, the earth + ke`ntron center: cf. F. géocentrique.] (Astron.) (a) Having reference to the earth as center; in relation to or seen from the earth, — usually opposed to heliocentric, as seen from the sun; as, the geocentric longitude or latitude of a planet. (b) Having reference to the center of the earth.

Geocentric latitude (of place) the angle included between the radius of the earth through the place and the plane of the equator, in distinction from geographic latitude. It is a little less than the geographic latitude.

(Ge`o*cen"tric*al*ly), adv. In a geocentric manner.

(Ge*oc"ro*nite) n. [Gr. ge`a, gh^, the earth + Kro`nos Saturn, the alchemistic name of lead: cf. G. geokronit.] (Min.) A lead-gray or grayish blue mineral with a metallic luster, consisting of sulphur, antimony, and lead, with a small proportion of arsenic.

(Ge`o*cyc"lic) a. [Gr. ge`a, gh^, the earth + ky`klos circle.]

1. Of, pertaining to, or illustrating, the revolutions of the earth; as, a geocyclic machine.

2. Circling the earth periodically.

(Ge"ode) n. [F. géode, L. geodes, fr. Gr. earthlike; ge`a, gh^, the earth + e'i^dos form.] (Min.) (a) A nodule of stone, containing a cavity, lined with crystals or mineral matter. (b) The cavity in such a nodule.

(Ge`o*deph"a*gous) a. [Gr. ge`a, gh^, earth + 'adhfa`gos eating one's fill; gluttonous.] (Zoöl.) Living in the earth; — applied to the ground beetles.

Gen"u*ine*ly, adv.Gen"u*ine*ness, n.

The evidence, both internal and external, against the genuineness of these letters, is overwhelming.

(Ge"nus) n.; pl. Genera [L., birth, race, kind, sort; akin to Gr. . See Gender, and cf. Benign.]

1. (Logic) A class of objects divided into several subordinate species; a class more extensive than a species; a precisely defined and exactly divided class; one of the five predicable conceptions, or sorts of terms.

2. (Biol.) An assemblage of species, having so many fundamental points of structure in common, that in the judgment of competent scientists, they may receive a common substantive name. A genus is not necessarily the lowest definable group of species, for it may often be divided into several subgenera. In proportion as its definition is exact, it is natural genus; if its definition can not be made clear, it is more or less an artificial genus.

Thus in the animal kingdom the lion, leopard, tiger, cat, and panther are species of the Cat kind or genus, while in the vegetable kingdom all the species of oak form a single genus. Some genera are represented by a multitude of species, as Solanum (Nightshade) and Carex others by few, and some by only one known species.

  By PanEris using Melati.

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