— epibolic /ep'euh bol"ik/ , adj.
/i pib"euh lee/ , n. , pl. epibolies . Embryol.
the movement and spreading out of cells into sheets of tissue that overlie or surround other groups of cells, esp. as in the formation of certain gastrulas.
[ 1870-75; epibolé a throwing on, equiv. to epi- EPI- + bol- (var. s. of bállein to throw) + -e n. suffix ]