dryas

词形变化

dryases 复数 dryases

释义与例句

n.
  1. 1.

    Any of several plants of the genus Dryas; the mountain avens.

  2. 2.

    One of two periods of cold and increased glaciation thousands of years before the present (Younger Dryas and Older Dryas).

相关短语

Younger Dryas Oldest Dryas

词源

Borrowed from translingual Dryas for the plants, from both Latin Dryas and Ancient Greek Δρῠᾰ́ς (Drŭắs), derived from δρῦς (drûs, “tree, oak”). The second definition comes from the large quantity of pollen from the plant that is found in ice cores dating from these periods.

来源：wiktionary