01 n. One of the parts into which any body naturally separates or is divided; a part divided or cut off; a section; a portion; as, a segment of a…
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1.
One of the parts into which any body naturally separates or is divided; a part divided or cut off; a section; a portion; as, a segment of an orange; a segment of a compound or divided leaf.
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2.
A part cut off from a figure by a line or plane; especially, that part of a circle contained between a chord and an arc of that circle, or so much of the circle as is cut off by the chord; as, the segment acb in the Illustration.(Geom.)
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3.
A piece in the form of the sector of a circle, or part of a ring; as, the segment of a sectional fly wheel or flywheel rim.(Mach.)
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4.
One of the cells or division formed by segmentation, as in egg cleavage or in fissiparous cell formation.(Biol.)
Phrases & compounds
Segment gear —
a piece for receiving or communicating reciprocating motion from or to a cogwheel, consisting of a sector of a circular gear, or ring, having cogs on the periphery, or face.
Segment of a line —
the part of a line contained between two points on it.
Segment of a sphere —
the part of a sphere cut off by a plane, or included between two parallel planes.