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Meanings of primitive segments in English

We have no meanings for "primitive segments" in our records yet.
Usage of primitive segments in English
1
In the narrow middle part the first three primitive segments may be seen.)
The Evolution of Man — Volume 1
2
Frontal (or horizontal-longitudinal) section of a triton-embryo with three pairs of primitive segments.
The Evolution of Man — Volume 1
3
The body is a series of metamera, as several of the primitive segments are developed.
The Evolution of Man — Volume 2
4
Transverse section of a duck-embryo with twenty-four primitive segments.
The Evolution of Man — Volume 1
5
In the middle of the sole-shaped embryonic shield the first primitive segments immediately begin to make their appearance.
The Evolution of Man — Volume 1
6
The number of primitive segments increases, and generally amounts to fourteen, some forty-eight to fifty hours after impregnation.
The Evolution of Man — Volume 2
7
Hence we shall give the name of "somites" or primitive segments to these so-called "primitive vertebrae."
The Evolution of Man — Volume 1
8
These pairs of "cubes" of the mesoderm are the first traces of the primitive segments or somites, the so-called "protovertebrae."
The Evolution of Man — Volume 1
9
In Figure 1.158 only the outlines of the eight primitive segments are indicated, in Figure 1.159 their cavities and muscular walls.
The Evolution of Man — Volume 1
10
Figure 1.79 at the commencement of coelom formation (still without segments), Figure 1.80 at the stage with four primitive segments.
The Evolution of Man — Volume 1
11
The foremost of these primitive segments (us1) is the first and oldest; in Figures 1.124 and 1.157 there are already five formed.
The Evolution of Man — Volume 1
This collocation consists of:
Primitive segments across language varieties
United Kingdom
Common