vesicles

ves*i*cle

noun

{bc}a membranous and usually fluid-filled pouch (such as a cyst, vacuole, or cell) in a plant or animal

blas*to*der*mic vesicle

noun

{bc}{sx|blastocyst||}

germinal vesicle

noun

{bc}the enlarged nucleus of the egg before completion of meiosis

optic vesicle

noun

{bc}an evagination of each lateral wall of the embryonic vertebrate forebrain from which the nervous structures of the eye develop

seminal vesicle

noun

{bc}either of a pair of glandular pouches that lie one on either side of the male reproductive tract and in the human male secrete a sugar- and protein-containing fluid into the ejaculatory duct