|—n , pl -ta|
|1.||a layer of nutritive cells in the sporangia of ferns and anthers of flowering plants that surrounds developing spore cells|
|2.||a. a membranous reflecting layer of cells in the choroid of the eye of nocturnal vertebrates|
|b. a similar structure in the eyes of certain nocturnal insects|
|3.||anatomy a covering layer of cells behind the retina of the eye|
|[C18: from New Latin, from Medieval Latin: covering, from Latin tapēte carpet, from Greek tapēs carpet]|
|male reproductive structure which produces gametes in ferns, mosses, fungi and algae|
|organisms having pairs of homologous chromosomes|
tapetum ta·pe·tum (tə-pē'təm)
n. pl. ta·pe·ta (-tə)
A membranous layer or region, especially the iridescent membrane of the choroid of certain mammals.
A layer of fibers of the corpus callosum forming the roof of part of the lateral ventricle of the brain.