calcareous
Composed of calcium carbonate, calcium, or limestone; chalky.

cale
Variety of cabbage in which the leaves do not form a head, being nearly
the wild form of the species; also called kail.

calomel
Colorless, white or brown tasteless compound, Hg2Cl2, used as a
purgative and insecticide. Mercurous chloride.

cambric
Finely woven white linen or cotton fabric.


cantharis (pl. cantharides) (also called Spanish fly)
Brilliant green blister beetle (Lytta vesicatoria or Cantharis
vesicatoria) of central and southern Europe. Toxic preparation of the
crushed, dried bodies of this beetle, formerly used as a
counter-irritant for skin blisters and as an aphrodisiac.

capsicum
Topical American pepper plants, genus Capsicum, especially C. annuum and
C. frutescens.

capsid (mirid bug, mirid)
Variety of leaf bug.

carbolic acid (phenol)
Caustic, poisonous, white crystalline compound, C6H5OH, derived from