The Collaborative International Dictionary
Hyemal
Hyemal \Hy*e"mal\, a. [L. hyemalis, or better hiemalis, fr.
hyems, hiems, winter: cf. F. hy['e]mal.]
Belonging to winter; done in winter.
--Sir T. Browne.
Wiktionary
hyemal
a. Belonging to winter; done in winter.