| 释义 |
embryonal area em·bry·o·nal ar·e·a , embryonic areathe area of the blastoderm or embryonic disc on either side of, and immediately cephalic to, the primitive streak where the component cell layers have become thickened.em·bry·o·nal ar·e·a , embryonic area (em'brē-ōn'ăl ār'ē-ă, em'brē-on'ik) The area of the blastoderm on either side of, and immediately cephalic to, the primitive streak where the component cell layers have become thickened. |