[boot-n-eer, boo-tuh
n-yair] 
| a flower or small bouquet worn, usually by a man, in the buttonhole of a lapel. |
| bou·ton·niere also bou·ton·nière (bōō'tə-nîr', -tən-yâr') n. A flower or small bunch of flowers worn in a buttonhole. [French boutonnière, from Old French, buttonhole, from bouton, button; see button.] |