| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
| a gadget; dingus; thingumbob. |
antimetabolite an·ti·me·tab·o·lite (ān'tē-mĭ-tāb'ə-līt', ān'tī-)
n.
A substance that closely resembles an essential metabolite and competes with, interferes with, or replaces the metabolite in physiological reactions.