معنی کلمه : interoperculum
English
The postero-inferior opercular bone, in fishes.
The exterior curve of an arch; esp., the upper curved face of the whole body of voussoirs. See Intrados.
کلماتور
The postero-inferior opercular bone, in fishes.
The exterior curve of an arch; esp., the upper curved face of the whole body of voussoirs. See Intrados.