Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of the parts into which something can be divided: segments of the community; a segment of a television program.
  • n. Mathematics The portion of a line between any two points on the line.
  • n. Mathematics The area bounded by a chord and the arc of a curve subtended by the chord.
  • n. Mathematics The portion of a sphere cut off by two parallel planes.
  • n. Biology A clearly differentiated subdivision of an organism or part, such as a metamere.
  • transitive v. To divide or become divided into segments.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A length of some object.
  • n. A straight path between two points that is the shortest distance between them.
  • n. The part of a circle between its circumference and a chord (usually other than the diameter).
  • n. Any of the pieces that comprise an order tree.
  • n. A consonant or a vowel.
  • n. A part of a broadcast program, devoted to a topic.
  • n. An Ethernet bus.
  • n. A portion of an itinerary; can be a flight or train between two cities, a car or hotel booked in a particular city.
  • n. A portion of an organ whose cells are derive from a single cell within the primordium from which the organ developed.
  • n. One of several parts of an organism, with similar structure, arranged in a chain; such as a vertebra, or a third of an insect's thorax.
  • v. To divide into segments or sections.

from the GNU version of the Collaborative International Dictionary of English

  • n. One of the parts into which any body naturally separates or is divided; a part divided or cut off; a section; a portion
  • n. 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.
  • n.
  • n. A piece in the form of the sector of a circle, or part of a ring.
  • n. A segment gear.
  • n.
  • n. One of the cells or division formed by segmentation, as in egg cleavage or in fissiparous cell formation.
  • n. One of the divisions, rings, or joints into which many animal bodies are divided; a somite; a metamere; a somatome.
  • intransitive v. To divide or separate into parts in growth; to undergo segmentation, or cleavage, as in the segmentation of the ovum.

from The Century Dictionary and Cyclopedia

  • To divide or become divided or split up into segments.
  • To separate or divide into segments: as, a segmented cell.
  • n. A part cut off or marked as separate from others; one of the parts into which a body naturally divides itself; a section: as, the segments of a calyx; the segments of an orange; the segments of a leaf.
  • n. In geometry, a part cut off from any figure by a line or plane.
  • n. In heraldry, a bearing representing one part only of a rounded object, as a coronet or wreath: usually a piece less than half of the circle.
  • n. An element of a machine, such as a toothed wheel, cam, or pulley, the active surface of which is not a full surface of revolution, but only a segment or part of such surface.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. divide or split up
  • v. divide into segments
  • n. one of the parts into which something naturally divides
  • n. one of several parts or pieces that fit with others to constitute a whole object

Etymologies

Latin segmentum, from secāre, to cut; see sek- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin segmentum ("a piece cut off, a strip, segment of the earth, a strip of tinsel"), from secare ("to cut"). (Wiktionary)

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