The Collaborative International Dictionary
Iodal
Iodal \I"o*dal\ ([imac]"[-o]*dal), n. [Iod- + alcohol.] (Chem.) An oily liquid, CI3.CHO, analogous to chloral and bromal.
Wiktionary
iodal
n. (context organic compound English) The compound trichloroacetaldehyde, CI3-CHO