WordReference Random House Unabridged Dictionary of American English © 2026
ex•tra•cel•lu•lar
(ek′strə sel′yə lər),USA pronunciation adj. [Biol.]
ex′tra•cel′lu•lar•ly, adv.
- Cell Biologyoutside a cell or cells.
- extra- + cellular 1865–70
'extracellular' also found in these entries (note: many are not synonyms or translations):