Found 1 items, similar to Primitive streak.
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Definition: Primitive streak
, a. [L. primitivus, fr. primus the
first: cf. F. primitif. See Prime
1. Of or pertaining to the beginning or origin, or to early
times; original; primordial; primeval; first; as,
primitive innocence; the primitive church. “Our primitive
2. Of or pertaining to a former time; old-fashioned;
characterized by simplicity; as, a primitive style of
3. Original; primary; radical; not derived; as, primitive
verb in grammar.
Primitive axes of co["o]rdinate
(Geom.), that system of
axes to which the points of a magnitude are first
referred, with reference to a second set or system, to
which they are afterward referred.
(Mus.), that chord, the lowest note of
which is of the same literal denomination as the
fundamental base of the harmony; -- opposed to derivative.
--Moore (Encyc. of Music).
(Spherical Projection), the circle cut
from the sphere to be projected, by the primitive plane.
(Paint.), primary colors. See under
(Eccl.), the acknowledged Christian
writers who flourished before the Council of Nice, A. D.
(Anat.), a depression or groove in the
epiblast of the primitive streak. It is not connected with
the medullary groove, which appears later and in front of
(Spherical Projection), the plane upon
which the projections are made, generally coinciding with
some principal circle of the sphere, as the equator or a
(Geol.), primary rocks. See under
. (Anat.) See Neurilemma
or Primitive trace
(Anat.), an opaque
and thickened band where the mesoblast first appears in
the vertebrate blastoderm.
Syn: First; original; radical; pristine; ancient; primeval;