(organic chemistry) The divalent radical CH₃-CH₂-CH< analogous to ethylidene; propylidene / (organic chemistry) The pesticide butan-2-yl 2-(2-hydroxyethyl)piperidine-1-carboxylate

(transitive) To lift a ban against.

Relating to a cellulosome

(UK, dialect) The ringed plover. / (UK, dialect) The dotterel.