- a part cut off from a figure, especially a circular or spherical one, by a line or plane, as a part of a circular area contained by an arc and its chord or by two parallel lines or planes.
- Also called line segment.a finite section of a line.
- any of the rings that compose the body of an annelid or arthropod.
- any of the discrete parts of the body of an animal, especially of an arthropod.
- a portion of a program, often one that can be loaded and executed independently of other portions.
- a unit of data in a database.
verb (used with or without object)
Origin of segment
Synonyms for segment
- a part of a line or curve between two points
- a part of a plane or solid figure cut off by an intersecting line, plane, or planes, esp one between a chord and an arc of a circle
Word Origin for segment
1560s, from Latin segmentum "a strip or piece cut off, a cutting, strips of colored cloth," from secare "to cut" (see section (n.)), with euphonious alteration of -c- to -g- before -m-. Latin segmentum was used in Medieval Latin as a geometry term, translating Greek tmema, and the word was first picked up in English in this sense. Meaning "segmental portion of anything circular" is from 1640s; general sense of "a division, section" is from 1762.
1859, intransitive, in reference to cell division, from segment (n.). Transitive sense, "divide (something) into segments" is from 1872. Related: Segmented; segmenting.