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Of or pertaining to a pine cone; resembling a pine cone. Pineal gland (Anat.), a glandlike body in the roof of the third ventricle of the vertebrate brain; -- called also pineal body, epiphysis, conarium. In some animals it is connected with a rudimentary eye, the so-called pineal eye, and in other animals it is suppos…

-- so called from the resemblance of the latter, in shape and external appearance, to the cone of the pine tree. Its origin is unknown, though conjectured to be American.

Pertaining to, or based upon, many cones. Polyconic projection (Map Making), a projection of the earth's surface, or any portion thereof, by which each narrow zone is projected upon a conical surface that touches the sphere along this zone, the conical surface being then unrolled. This projection differs from conic pro…

including those that have a long retractile proboscis, with the mouth at the end, as the cones, whelks, tritons, and cowries. See Illust. of Gastropoda, and of Winkle.

e of representing the sphere, the spherical surface being projected upon the surface of a cone tangent to the sphere, the point of sight being at the center of the sphere. -- Cylindric projection, a mode of representing the sphere, the spherical surface being projected upon the surface of a cylinder touching the spher…

The anterior prolongation of the guard of the phragmocone of belemnites and allied fossil cephalopods, whether horny or calcareous. See Illust. of Phragmocone.

A method of training trees or shrubs in the shape of a cone or distaff by tying down the branches and pruning.

Opt.), the refraction of a ray of light into an infinite number of rays, forming a hollow cone. This occurs when a ray of light is passed through crystals of some substances, under certain circumstances. Conical refraction is of two kinds; external conical refraction, in which the ray issues from the crystal in the for…

Incone; revenue. See Catel. [Obs.] "Catel had they enough and rent." Chaucer. [Bacchus] a waster was and all his rent In wine and bordel he dispent. Gower. So bought an annual rent or two, And liv'd, just as you see I do. Pope.

lution); as, the revolution of a right-angled triangle about one of its sides generates a cone; the revolution of a semicircle about the diameter generates a sphere.

The red pigment contained in the inner segments of the cones of the retina in animals. See Chromophane. W. KÜhne.

from a base; having an upright axis; not oblique; as, right ascension; a right pyramid or cone.

half feet; -- called also perch, and pole. Black rod. See in the Vocabulary. -- Rods and cones (Anat.), the elongated cells or elements of the sensory layer of the retina, some of which are cylindrical, others somewhat conical.

be said to hold in round numbers 100 bushels. -- Round bodies (Geom.), the sphere right cone, and right cylinder. -- Round clam (Zoöl.), the quahog. -- Round dance one which is danced by couples with a whirling or revolving motion, as the waltz, polka, etc. -- Round game, a game, as of cards, in which each plays o…

A genus of composite plants, the coneflowers, consisting of perennial herbs with showy pedunculate heads, having a hemispherical involucre, sterile ray flowers, and a conical chaffy receptacle. There are about thirty species, exclusively North American. Rudbeckia hirta, the black-eyed Susan, is a common weed in meadow…

the scales of a fish in form, and often in arrangement; as, the scale of a bud, of a pine cone, and the like. The name is also given to the chaff on the stems of ferns.

Having the axis inclined to the base, as a cone.

nt (as g in gem, c in cent, etc.) as distinguished from a guttural mute (as g in go, c in cone, etc.); -- opposed to hard.

Not hollow; full of matter; as, a solid globe or cone, as distinguished from a Ant: hollow one; not spongy; dense; hence, sometimes, heavy.

pindle, for turning small objects, for polishing, etc.; a hand lathe. -- Speed pulley, a cone pulley with steps.