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Webster’s Dictionary (1828)



13 words match “SPHEROIDAL”

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…
HEMISPHEROIDAL a.
Resembling, or approximating to, a hemisphere in form.
SEMISPHEROIDAL a.
Formed like a half spheroid.
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.
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.]
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…
ORBICULATE; ORBICULATED a.
Made, or being, in the form of an orb; having a circular, or nearly circular, or a spheroidal, outline. Orbiculate leaf (Bot.), a leaf whose outline is nearly circular.
SPHEROIDIC; SPHEROIDICAL a.
See Spheroidal. Cheyne.
SPHEROIDICITY; SPHEROIDITY n.
The quality or state of being spheroidal.
SPHEROSIDERITE n.
Siderite occuring in spheroidal masses.