Main Entry: clep·sy·dra

Pronunciation: \ˈklep-sə-drə\

Function: noun

Inflected Form(s): plural clep·sy·dras or clep·sy·drae \-ˌdrē, -ˌdrī\

Etymology: Latin, from Greek klepsydra, from kleptein to steal + hydōr water — more at klept-, water

Date: 1580

: water clock