A small, hardy, naturalized (feral) horse of the North American west. / (US, military slang) A merchant marine who joined the U.S. Navy as a commissioned officer during the American Civil War.

(US) To hunt mustangs (wild horses), either for military use or for slaughter as pet food.

(technical) Mustard gas.

A vesicant gas, bis (2-chloroethyl) sulfide, (ClC₂H₄)₂S, once used in chemical warfare.

plural of mustang

Third-person singular simple present indicative form of mustang

plural of mustache

plural of Mustafa

(chemistry) Any of a series of compounds, analogous to mustard gas with sulfur replaced by nitrogen, that have been used in the treatment of cancer.

Alternative form of moustached