(n) :
(zoology) An early or simple larval stage of trematode worms and some other invertebrates, which is capable of reproducing other germ cells by asexual generation; a redia.
(n) :
(botany) A hydrozoan reproductive zooid or simple form of gonophore which does not become medusoid in form or structure
(n) :
(zoology) An early or simple larval stage of trematode worms and some other invertebrates, which is capable of reproducing other germ cells by asexual generation; a redia.
(n) :
(botany) A hydrozoan reproductive zooid or simple form of gonophore which does not become medusoid in form or structure