iodoform

from WordNet (r) 3.0 (2006)

iodoform
    n 1: sweet smelling yellow solid haloform CHI3 [syn: {iodoform},
         {tri-iodomethane}]
    2: a yellowish crystalline solid with a penetrating odor;
       sometimes used as an antiseptic dressing [syn: {iodoform},
       {triiodomethane}]

from The Collaborative International Dictionary of English v.0.48

Iodoform \I*od"o*form\, n. [Iodo- + formyl. See {Formyl}, and
   cf. {Chloroform}.] (Chem.)
   A yellow, crystalline, volatile substance, {CI3H}, having an
   offensive odor and sweetish taste, and analogous to
   chloroform. It is used in medicine as a healing and
   antiseptic dressing for wounds and sores.
   [1913 Webster]