| noct | (omni nocte) adj. ทุกคืน |
| noctiluca | (n) large bioluminescent marine protozoan, Syn. Noctiluca miliaris |
| noctilucent | (adj) shining or glowing by night, Example: the noctilucent eyes of a cat |
| noctua | (n) type genus of the Noctuidae: moths whose larvae are cutworms, Syn. genus Noctua |
| noctuidae | (n) cutworms; armyworms, Syn. family Noctuidae |
| noctuid moth | (n) usually dull-colored medium-sized nocturnal moth; the usually smooth-bodied larvae are destructive agricultural pests, Syn. noctuid, owlet moth |
| nocturia | (n) excessive urination at night; especially common in older men, Syn. nycturia |
| nocturnal | (adj) belonging to or active during the night, Ant. diurnal, Example: nocturnal animals are active at night; nocturnal plants have flowers that open at night and close by day |
| nocturnal | (adj) of or relating to or occurring in the night, Example: nocturnal darkness |
| nocturnal emission | (n) ejaculation during sleep (usually during a dream) |
| nocturnally | (adv) at night, Example: nocturnally active bird |
| Noctambulation | n. [ L. nox, noctis, night + ambulare to walk: cf. F. noctambulation. ] Somnambulism; sleepwalking; walking in one's sleep. Quain. [ 1913 Webster +PJC ] |
| Noctambulism | n. Somnambulism. |
| Noctambulist | n. A somnambulist; a sleepwalker. [ 1913 Webster ] |
| Noctambulo | n. A noctambulist; a sleepwalker. [ Obs. ] [ 1913 Webster ] |
| Noctidial | a. [ L. nox, noctos, night + dies day. ] Comprising a night and a day; |
| Noctiferous | a. [ L. noctifer; nox, noctis + ferre to bring. ] Bringing night. [ Obs. ] Johnson. [ 1913 Webster ] |
| Noctilionid | n. [ Etymol. uncertain. ] (Zool.) A South American bat of the genus |
| Noctiluca | ‖n.; |
| Noctilucin | n. (Zool.) A fatlike substance in certain marine animals, to which they owe their phosphorescent properties. [ 1913 Webster ] |
| Noctilucine | a. (Zool.) Of or pertaining to |