- the subdivision of an organism or of an organ into more or less equivalent parts.
- cell division.
Related formsnon·seg·men·ta·tion, noun
Examples from the Web for segmentation
A segmentation cavity appears when sixteen segments are formed, and becomes somewhat larger at the stage with thirty-two.The Works of Francis Maitland Balfour, Volume II (of 4)|Francis Maitland Balfour
The segmentation is also generally emphasized, as shown in all the examples on the plate, but in its simplicity in Fig. 10.Colouration in Animals and Plants|Alfred Tylor
Wilson, separation of segmentation spheres of amphioxus egg, 60.The Biological Problem of To-day|Oscar Hertwig
An equatorial plane divides it into two parts, which have equal shares in bounding the segmentation cavity.The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour
(f) The segmentation of the body is anomomeristic in the more archaic members of each class, nomomeristic in the higher members.