Main Entry: ses·sile

Pronunciation: \ˈse-ˌsī(-ə)l, -səl\

Function: adjective

Etymology: Latin sessilis of or fit for sitting, low, dwarf (of plants), from sessus, past participle of sedēre

Date: circa 1753

1 : attached directly by the base : not raised upon a stalk or peduncle <a sessile leaf> <sessile bubbles>
2 : permanently attached or established : not free to move about <sessile sponges and coral polyps>