sessile (not comparable)

1. (zoology) Permanently attached to a substrate; not free to move about.

   a sessile oyster

2. (botany) Attached directly by the base; not having an intervening stalk; stalkless.
   • 1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, New York, N.Y.: Columbia University Press, →ISBN, page 5:

     The sporophyte foot is also characteristic: it is very broad and more or less lenticular or disciform, as broad or broader than the calyptra stalk […] , and is sessile on the calyptra base{{...}

• (not free to move) attached, fixed, immobile

• (not free to move) mobile

• German: ortsfest, festgewachsen, festsitzend, sitzend, sessil
• Italian: sessile
• Portuguese: séssil
• Spanish: sésil

• German: ungestielt, stiellos, sessil, sitzend
• Italian: sessile
• Portuguese: séssil
• Spanish: sésil