sessility

/sɛˈsɪləti/
noun
  1. The state or quality of being permanently attached to a surface and not able to move, used especially in biology for animals like barnacles or corals.
    • In biology class, we learned that sessility evolved independently in many marine animals.
    • Sessility is an advantage for filter feeders that live in strong currents.
    • The sessility of barnacles means they spend their entire adult life attached to a rock or ship hull.
Antonyms
What does "sessility" mean? | whatsthatwordmean | whatsthatwordmean