Sessility

Sessility, or sessile, may refer to:


 * Sessility (motility), organisms which are not able to move about
 * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant
 * Sessility (medicine), tumors and polyps that lack a stalk
 * Sessility (in crystallography), dislocation that is not able to move in the slip plane (as opposed to glissile)