Vocabulary : Octahedron to Octant

Octahedron : A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles.
Octamerous : Having the parts in eights; as, an octamerous flower; octamerous mesenteries in polyps.
Octameter : A verse containing eight feet; as, --//Deep# in|to# the | dark#ness | peer#ing, | long# I | stood# there | wond'#ring, | fear#ing.
Octander : One of the Octandria.
Octandria : A Linnaean class of plants, in which the flowers have eight stamens not united to one another or to the pistil.

Octandrian : Alt. of Octandrous
Octandrous : Of or pertaining to the Octandria; having eight distinct stamens.
Octane : Any one of a group of metametric hydrocarcons (C8H18) of the methane series. The most important is a colorless, volatile, inflammable liquid, found in petroleum, and a constituent of benzene or ligroin.
Octangular : Having eight angles; eight-angled.
Octant : The eighth part of a circle; an arc of 45 degrees. ;; The position or aspect of a heavenly body, as the moon or a planet, when half way between conjunction, or opposition, and quadrature, or distant from another body 45 degrees. ;; An instrument for measuring angles (generally called a quadrant), having an arc which measures up to 9O, but being itself the eighth part of a circle. Cf. Sextant. ;; One of the eight parts into which a space is divided by three coordinate planes.

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