- belonging or relating to Noctuidae, a family of moths whose larvae include the armyworms and cutworms: The caterpillars on these larch trees have a distinctive noctuid appearance.
- any of numerous, often dull-colored moths of the family Noctuidae, the larvae of which include the armyworms and cutworms, and the adults of which have a distinctively structured metathorax.
- any nocturnal moth of the family Noctuidae: includes the underwings and antler moth
- of, relating to, or belonging to the Noctuidae
