| yttrium metal | |
| —n | |
| chem any one of a group of elements including yttrium and the related lanthanides, holmium, erbium, thulium, ytterbium, and lutetium | |
| a scrap or morsel of food left at a meal. |
| 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. |