(In rhombiferan echinoderms) a diamond-shaped group of surface perforations and canals shared between two thecal plates, believed to have served a respiratory function.
Origin
Mid 19th century; earliest use found in Annals and Magazine of Natural History.
Definition of pore rhomb in US English:
pore rhomb
noun
(In rhombiferan echinoderms) a diamond-shaped group of surface perforations and canals shared between two thecal plates, believed to have served a respiratory function.
Origin
Mid 19th century; earliest use found in Annals and Magazine of Natural History.