segmentation

segmentation

[seg-muhn-tey-shuhn]
noun
1.
division into segments.
2.
Biology.
a.
the subdivision of an organism or of an organ into more or less equivalent parts.
b.
cell division.

Origin:
1850–55; segment + -ation

nonsegmentation, noun
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World English Dictionary
segmentation (ˌsɛɡmɛnˈteɪʃən)
 
n
1.  the act or an instance of dividing into segments
2.  embryol another name for cleavage
3.  zoology another name for metamerism

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

segmentation seg·men·ta·tion (sěg'mən-tā'shən, -měn-)
n.
See cleavage.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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FOLDOC
Computing Dictionary

segmentation definition

networking
(Or "segmentation and reassembly", SAR) Breaking an arbitrary size packet into smaller pieces at the transmitter. This may be necessary because of restrictions in the communications channel or to reduce latency. The pieces are joined back together in the right order at the receiver ("reassembly"). Segmentation may be performed by a router when routing a packet to a network with a smaller maximum packet size.
The term "segmentation" is used in ATM, in TCP/IP, it is called "fragmentation" an is performed at the IP layer before the "fragments" are passed to the transport layer.
See for example ATM forum UNI 4.0 specification.
[Better reasons?]
(1999-06-14)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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