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a lengthwise median furrow in the primitive streak of the embryo; in human embryos it is clearly visible during the third week. Called also primordial g. or furrow.Medical dictionary. 2011.
Primitive groove — Primitive Prim i*tive, a. [L. primitivus, fr. primus the first: cf. F. primitif. See {Prime}, a.] 1. Of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first; as, primitive innocence; the primitive… … The Collaborative International Dictionary of English
Primitive groove — Infobox Embryology Name = Primitive groove Latin = GraySubject = 6 GrayPage = 47 Caption = Surface view of embryo of Hylobates concolor. The amnion has been opened to expose the embryonic disk. Caption2 = System = CarnegieStage = 9 Precursor =… … Wikipedia
primitive groove — noun : a depression or groove in the epiblast of the primitive streak that extends forward to the primitive knot … Useful english dictionary
Primitive — Prim i*tive, a. [L. primitivus, fr. primus the first: cf. F. primitif. See {Prime}, a.] 1. Of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first; as, primitive innocence; the primitive church. Our… … The Collaborative International Dictionary of English
Primitive axes of coordinate — Primitive Prim i*tive, a. [L. primitivus, fr. primus the first: cf. F. primitif. See {Prime}, a.] 1. Of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first; as, primitive innocence; the primitive… … The Collaborative International Dictionary of English
Primitive chord — Primitive Prim i*tive, a. [L. primitivus, fr. primus the first: cf. F. primitif. See {Prime}, a.] 1. Of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first; as, primitive innocence; the primitive… … The Collaborative International Dictionary of English
Primitive circle — Primitive Prim i*tive, a. [L. primitivus, fr. primus the first: cf. F. primitif. See {Prime}, a.] 1. Of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first; as, primitive innocence; the primitive… … The Collaborative International Dictionary of English
Primitive colors — Primitive Prim i*tive, a. [L. primitivus, fr. primus the first: cf. F. primitif. See {Prime}, a.] 1. Of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first; as, primitive innocence; the primitive… … The Collaborative International Dictionary of English
Primitive Fathers — Primitive Prim i*tive, a. [L. primitivus, fr. primus the first: cf. F. primitif. See {Prime}, a.] 1. Of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first; as, primitive innocence; the primitive… … The Collaborative International Dictionary of English
Primitive plane — Primitive Prim i*tive, a. [L. primitivus, fr. primus the first: cf. F. primitif. See {Prime}, a.] 1. Of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first; as, primitive innocence; the primitive… … The Collaborative International Dictionary of English
