- a white substance, calcium oxide, CaO, obtained by the action of heat on limestone, shells, and other material containing calcium carbonate, and used in making mortar and cement, and, when hydrated, in neutralizing acid soil
- a calcareous deposit from water inside pipes, pans, etc.
Origin of limeMiddle English from Old English l?m, akin to German leim from Indo-European base an unverified form (s)lei-, slime, wet and sticky, to smooth over from source Classical Greek leios, smooth, Classical Latin limus, slime, mud, linere, to smear, levis, smooth, Old English lam, clay
transitive verblimed, lim′ing
- to cement
- to smear with birdlime
- to catch with or as with birdlime
- to apply lime to; treat with lime