| a chattering or flighty, light-headed person. |
| 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. |
biochemistry bi·o·chem·is·try (bī'ō-kěm'ĭ-strē)
n.
The study of the chemical substances and vital processes occurring in living organisms.
The chemical composition of a particular living system or biological substance.
| biochemistry (bī'ō-kěm'ĭ-strē) Pronunciation Key
The scientific study of the chemical composition of living matter and of the chemical processes that go on in living organisms. |
The study of the structure and interactions of the complex organic molecules found in living systems.