释义 |
nychthemeral, a.|nɪkˈθiːmərəl| Also nycthemeral. [f. nychthemeron + -al.] Occurring with a variation that matches that of night and day.
1907Nature 17 Jan. 287/2 The regulation of the nychthemeral cycle of temperature and its inversion in the aged. 1967Oceanogr. & Marine Biol. V. 495 These nycthemeral changes of the gas tension in the different levels of water. 1974Nature 13 Sept. 143/2 These animals have a nychthemeral variation of less than 2° C. |