See Also: commensal(medicine)
Commensal(health)
commensal(dictionary)
commensal parasite(medicine)

tetrabranchiate (iou) and commensal (medicine)


tetrabranchiate (iou)



tetrabranchiate adjective & noun. M19.
[mod. Latin tetrabranchiata, formed as TETRA- + Greek bragkhia gills: see -ATE2.]
(Designating or pertaining to) a cephalopod having two pairs of gills, sometimes placed in a (mainly fossil) group Tetrabranchiata including the ammonites and nautiloids.

commensal (medicine)


commensal


1. <biology> Living on or within another organism and deriving benefit without injuring or benefiting the Other individual.

2. An organism living on or within another, but not causing injury to the host.