Definitions for "Brachia"
See Brachium.
two arms in ribbon form, from either side of lophophore, making it possible to filter the sea water
1.In brachiopods (Phylum Brachiopoda), a pair of feathery structures forming part of the lophophore, they are used in food collecting. 2. In crinoids (Phylum Echinodermata, Class Crinoidea), the long, plated, flexible arms containing a water vessel, from which the tube feet arise. When feeding the tube feet are extended, at other times they are covered by brachial plates. Smaller arms coming from the main brachia are called pinnules and are made up of pinnular plates. Singular: brachium.