What is "scaphander"

Scaphander \Sca*phan"der\, n. [Gr. ?, ?, anything hollowed + ?, ?, a man: cf. F. scaphandre.] The case, or impermeable apparel, in which a diver can work while under water.

n. (context dated English) A kind of diving suit.

Scaphander is a genus of sea snails, marine gastropod molluscs in the family Scaphandridae, the canoe bubbles.