【医】 mesodermal primary pulp
be hit by; fit exactly; hit; suffer
【计】 medium
【化】 meso-
【医】 coup; stroke
【医】 blastoderm; blastodermic layer; blastodisk; blastophyllum
emioryonic plate; germ layer; germ-disc; germ-layer; germinal disc
germinal layer; germinal membranes; membrana germinativa
at the beginning of; early; elementary; first; original
【医】 arch-; arche-; prot-; proto-
marrow
【医】 marrow; medulla; medullae; myel-; myelo-; pulp; pulpa