Segment

noun

verb

From Latin segmentum ("a piece cut off, a strip, segment of the earth, a strip of tinsel"), from secare ("to cut").

Full definition of segment

(plural segments)

A length of some object.
a segment of rope
One of the parts into which any body naturally separates or is divided; a part divided or cut off; a section; a portion.
a segment of an orange; a segment of a compound or divided leaf

2013, Henry Petroski, The Evolution of Eyeglasses, The ability of a segment of a glass sphere to magnify whatever is placed before it was known around the year 1000, when the spherical segment was called a reading stone,.... Scribes, illuminators, and scholars held such stones directly over manuscript pages as an aid in seeing what was being written, drawn, or read.

A straight path between two points that is the shortest distance between them.
(geometry) The part of a circle between its circumference and a chord (usually other than the diameter).
(topology) Any of the pieces that comprise an order tree.

(phonology) A discrete unit of speech: a consonant or a vowel.
(botany) A portion of an organ whose cells are derived from a single cell within the primordium from which the organ developed.

Schuster Hepaticae V|5In Lejeuneaceae vegetative branches normally originate from the basiscopic basal portion of a lateral segment half, as in the Radulaceae, and the associated leaves, therefore, are quite unmodified.

(zoology) 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.
(broadcasting) A part of a broadcast program, devoted to a topic.
The news showed a segment on global warming.

2012, April 29, Nathan Rabin, TV: Review: THE SIMPSONS (CLASSIC): â€œTreehouse of Horror IIIâ€ (season 4, episode 5; originally aired 10/29/1992), In â€œTreehouse Of Horrorâ€ episodes, the rules arenâ€™t just differentâ€”they donâ€™t even exist. If writers want Homer to kill Flanders or for a segment to end with a marriage between a woman and a giant ape, they can do so without worrying about continuity or consistency or fans griping that the gang is behaving out of character.

(computing) An Ethernet bus.
(computing) A region of memory or a fragment of an executable file designated to contain a particular part of a program.
(travel) A portion of an itinerary; can be a flight or train between two cities, a car or hotel booked in a particular city.