The Collaborative International Dictionary
metalorganic
organometallic \or`ga*no*me*tal"lic\, a. (Chem.) Pertaining to, or denoting, any one of a series of compounds of certain metallic elements bound to organic radicals; such as, methylmercury, zinc methyl, sodium ethyl, etc.; formerly refered to as metalorganic.
metalorganic
metalorganic \met`al*or*gan"ic\, a. [Metal, L. metallum + E. organic.] (Chem.) Pertaining to, or denoting, any one of a series of compounds of certain metallic elements with organic radicals; as, zinc methyl, sodium ethyl, etc.; now usually organometallic.
Wiktionary
metalorganic
a. (context chemistry English) organometallic n. Any organometallic compound