sinus
sinus A Latin word meaning ‘curve’ or ‘bay’.
1. The word ‘sinus’ was used by Giovanni B. Riccioli in 1651 to designate bay-like features on the lunar maria (see MARE). The best known example is Sinus Iridum, the ‘Bay of Rainbows’, on the north-western margin of the ‘Sea of Rains’ (Mare Imbrium).
2. In certain bivalves (Bivalvia), a recess or embayment in the pallial line; most bivalves with a pallial sinus are burrowers.
1. The word ‘sinus’ was used by Giovanni B. Riccioli in 1651 to designate bay-like features on the lunar maria (see MARE). The best known example is Sinus Iridum, the ‘Bay of Rainbows’, on the north-western margin of the ‘Sea of Rains’ (Mare Imbrium).
2. In certain bivalves (Bivalvia), a recess or embayment in the pallial line; most bivalves with a pallial sinus are burrowers.
More From encyclopedia.com
NEARBY TERMS
sinus