| 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 fool or simpleton; ninny. |
nucleoside nu·cle·o·side (n&oomacr;'klē-ə-sīd', ny&oomacr;'-)
n.
Any of various compounds consisting of a sugar, usually ribose or deoxyribose, and a purine or pyrimidine base, especially a compound obtained by hydrolysis of a nucleic acid, such as adenosine or guanine.
nucleoside (n 'klē-ə-sīd') Pronunciation Key
Any of various compounds consisting of a sugar, usually ribose or deoxyribose, and a nitrogen base (a purine or pyrimidine). Nucleosides are constituents of the nucleotides of nucleic acids. Adenosine and thymidine are nucleosides. |