any relationship between two organisms in which one grows on the other but is not parasitic on it See also epiphyte, epizoite
[ep-uh-bahy-ot-ik] /ˌɛp ə baɪˈɒt ɪk/ Biology adjective 1. of or relating to an organism that lives, usually parasitically, both on the surface and within the body of its host. noun 2. any such organism, as certain fungi.
[ep-uh-blast] /ˈɛp əˌblæst/ noun, Embryology. 1. the primordial outer layer of a young embryo before the segregation of the germ layers, capable of becoming the ectoderm and containing cells capable of becoming the mesoderm and endoderm. /ˈɛpɪˌblæst/ noun 1. (embryol) the outermost layer of an embryo, which becomes the ectoderm at gastrulation Also called ectoblast […]
/ˈɛpɪˌblɛm/ noun 1. (botany) the outermost cell layer of a root; epidermis
epiblepharon ep·i·bleph·a·ron (ěp’ə-blěf’ə-rŏn’) n. A congenital horizontal fold of skin near the margin of the upper or lower eyelid caused by the abnormal insertion of muscle fibers.
[ih-pib-uh-lee] /ɪˈpɪb ə li/ noun, plural epibolies. Embryology. 1. the movement and spreading out of cells into sheets of tissue that overlie or surround other groups of cells, especially as in the formation of certain gastrulas. /ɪˈpɪbəlɪ/ noun (pl) -lies 1. (embryol) a process that occurs during gastrulation in vertebrates, in which cells on one […]