segment Meaning, Definition & Usage

noun one of several parts or pieces that fit with others to constitute a whole object
section.
- a section of a fishing rod
- metal sections were used below ground
- finished the final segment of the road
noun one of the parts into which something naturally divides
- a segment of an orange
verb divide into segments
section.
- segment an orange
- segment a compound word
verb divide or split up
- The cells segmented

L. segmentum, fr. secare to cut, cut off: cf. F. segment. See Saw a cutting instrument.

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.
(Geom.) 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.
(Mach.) (a) 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. (b) A segment gear.
(Biol.) (a) One of the cells or division formed by segmentation, as in egg cleavage or in fissiparous cell formation. (b) One of the divisions, rings, or joints into which many animal bodies are divided; a somite; a metamere; a somatome.

(Biol.) To divide or separate into parts in growth; to undergo segmentation, or cleavage, as in the segmentation of the ovum.