释义 |
hydrothecaenUK
hydrotheca (ˌhaɪdrəˈθiːkə) n, pl -cae (-siː) (Zoology) a cuplike depression or cavity which protects an individual animal in some marine invertebrate colonial animalshydrothecaenUK
hydrotheca[‚hī·drō′thē·kə] (invertebrate zoology) Cup-shaped portion of the perisarc in some cnidarians that serves to hold and protect a withdrawn hydranth. hydrothecaenUK
hydrotheca the cup-like part of the perisarc of colonial COELENTERATES which surrounds and protects the polyp. |