adj. & n. Geol.
--adj. of or relating to the last period of the Palaeozoic era with evidence of the development of reptiles and amphibians, and deposits of sandstone.
Usage:
Cf. Appendix II.
--n. this period or system.
Etymology: Perm in Russia
adj. & n. Geol.
--adj. of or relating to the last period of the Palaeozoic era with evidence of the development of reptiles and amphibians, and deposits of sandstone.
Usage:
Cf. Appendix II.
--n. this period or system.
Etymology: Perm in Russia
Oxford English vocab. Оксфордский английский словарь. 2012