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Webster’s Dictionary (1828)



25 words match “SPHEROID”

SPHEROID n.
al; esp., a solid generated by the revolution of an ellipse about one of its axes. Oblate spheroid, Prolate spheroid. See Oblate, Prolate, and Ellipsoid.
SPHEROIDAL a.
Having the form of a spheroid. -- Sphe*roid"al*ly, adv. Spheroidal state (Physics.), the state of a liquid, as water, when, on being thrown on a surface of highly heated metal, it rolls about in spheroidal drops or masses, at a temperature several degrees below ebullition, and without actual contact with the heated su…
SPHEROIDIC; SPHEROIDICAL a.
See Spheroidal. Cheyne.
SPHEROIDICITY; SPHEROIDITY n.
The quality or state of being spheroidal.
HEMISPHEROID n.
A half of a spheroid.
HEMISPHEROIDAL a.
Resembling, or approximating to, a hemisphere in form.
SEMISPHEROIDAL a.
Formed like a half spheroid.
BIAS n.
h turns it from a straight line. Being ignorant that there is a concealed bias within the spheroid, which will . . . swerve away. Sir W. Scott.
BOMBOLO n.
A thin spheroidal glass retort or flask, used in the sublimation of camphor. [Written also bumbelo, and bumbolo.]
BOTRYOID; BOTRYOIDAL a.
s; like a cluster of grapes, as a mineral presenting an aggregation of small spherical or spheroidal prominences.
BULB n.
A spheroidal body growing from a plant either above or below the ground (usually below), which is strictly a bud, consisting of a cluster of partially developed leaves, and producing, as it grows, a stem above, and roots below, as in the onion, tulip, etc. It differs from a corm in not being solid.
DUMB-BELL n.
A weight, consisting of two spheres or spheroids, connected by a short bar for a handle; used (often in pairs) for gymnastic exercise.
ECHINOIDEA n.
chinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroid. [Written also Echinidea, and Echinoida.]
ELLIPTICITY n.
Deviation of an ellipse or a spheroid from the form of a circle or a sphere; especially, in reference to the figure of the earth, the difference between the equatorial and polar semidiameters, divided by the equatorial; thus, the ellipticity of the earth is
MERENCHYMA n.
Tissue composed of spheroidal cells.
NUCLEUS n.
A body, usually spheroidal, in a cell or a protozoan, distinguished from the surrounding protoplasm by a difference in refrangibility and in behavior towards chemical reagents. It is more or less protoplasmic, and consists of a clear fluid (achromatin) through which extends a network of fibers (chromatin) in which may…
OBLATE a. 2 definitions
Flattened or depressed at the poles; as, the earth is an oblate spheroid.
OBLATUM n.
An oblate spheroid; a figure described by the revolution of an ellipse about its minor axis. Cf. Oblongum.
OBLONGUM n.
A prolate spheroid; a figure described by the revolution of an ellipse about its greater axis. Cf. Oblatum, and see Ellipsoid of revolution, under Ellipsoid.
OHO interj.
x or combining form meaning like, resembling, in the form of; as in anthropoid, asteroid, spheroid.
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