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| 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. |
trochoid tro·choid (trō'koid', trŏk'oid') or tro·choi·dal (trō-koid'l, trŏk-oid'l)
adj.
Capable of or exhibiting rotation about a central axis.
Permitting rotation, as a pivot.