General English

General Science

  • noun a mucous substance secreted by an organism such as a snail
  • noun a coating of green algae on rocks or other surfaces
  • noun any thick liquid substance regarded as unpleasant


  • In electrolytic refining or plating, an insoluble residue that collects at the bottom of the solution or on the surface of the anode. In the electrolytic refining of copper, for example, this mud usually contains platinum, gold, and silver. Also called anode mud, or anode slime.


  • noun a despicable person; popular terms of abuse or distaste in the 1980s
  • verb to behave in a devious, sycophantic or ingratiating way. A usage popular among adolescents and young adults from the 1980s.

Origin & History of “slime”

along with its relatives German schleim, Dutch slijm, and Danish slim, slime comes from a prehistoric Germanic slīm-. this probably has connections with English lime ‘calcium’ and Latin līmus ‘mud’.