| 释义 | basal plate noun
 : an underlying structure: as
 a.  : the ventral portion of the neural tube
 b.  : the part of the decidua of a placental mammal that is intimately fused with the placenta
 c.  : the part of a coral corallium immediately below the polyp
 d.  : any of certain chiefly ventral skeletal plates of an echinoderm
 |