O1P3E1R1C3U1L1U1M3
15 points
OPERCULUM is validvalid
an opercule [n OPERCULA, OPERCULUMS]
(Latin) an anatomical part that serves as a lid or cover, also OPERCELE, OPERCULE [n OPERCULUMS or OPERCULA]
an opercule [n OPERCULA, OPERCULUMS]
(Latin) an anatomical part that serves as a lid or cover, also OPERCELE, OPERCULE [n OPERCULUMS or OPERCULA]