Definition of sessile
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>
Origin of sessile
Latin sessilis of or fit for sitting, low, dwarf (of plants), from sessus, past participle of sedēre
First Known Use: circa 1753
Learn More about sessile
Medical Dictionary: Definition of "sessile"
Seen and Heard
What made you want to look up sessile? Please tell us where you read or heard it (including the quote, if possible).