transitive. To form (something which has been fragmented or dispersed) into one body again; to recombine. Also intransitive: to coalesce. Obsolete…

Old Chemistry. To separate a metal from an alloy or a solution.

intransitive. ‘To generate heat by intestine motion’ (Johnson); to break into violent chemical action.

intransitive. Chemistry. Of a liquid that is being heated: to boil unevenly with the sudden expulsion of large bubbles of vapour which can force…

Of a liquid: to spread over or cover a surface as a thin film; esp. (of a salt solution) to rise on the sides of the containing vessel, depositing…

intransitive. To form an ol group or compound.

intransitive. Biochemistry. Of a protein or nucleic acid: to exchange complementary subunits in hybridization (sense 1d). Const. with (or to).