conchiferZool.|ˈkɒŋkɪfə(r)| [mod.f. L. concha (bivalve) shell + -fer bearing: in F. conchifère.] A bivalve mollusc of the class Conchifera. 1836Todd Cycl.Anat. I. 695/2 The family of monomyary Conchifers.1847Ansted Anc. World iv. 55 The brachiopods..were..superseded..by the higher conchifers.