| Word | Definitions | Synonyms |
|---|---|---|
| equinoctial | (adjective) relating to an equinox (when the lengths of night and day are equal) | - |
| (adjective) relating to the vicinity of the equator | - | |
| noctilucent | (adjective) shining or glowing by night | - |
| nocturnal | (adjective) belonging to or active during the night | - |
| (adjective) of or relating to or occurring in the night | - |