monatomic or monoatomic (ˌmɒnəˈtɒmɪk, ˌmɒnəʊəˈtɒmɪk) ![]() | |
| —adj | |
| 1. | (of an element) having or consisting of single atoms: argon is a monatomic gas |
| 2. | (of a compound or molecule) having only one atom or group that can be replaced in a chemical reaction |
| 3. | a less common word for monovalent |
| monoatomic or monoatomic | |
| —adj | |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a chattering or flighty, light-headed person. |
monatomic mon·a·tom·ic (mŏn'ə-tŏm'ĭk)
adj.
Occurring as single atoms.
Having one replaceable atom or radical.
Univalent.