neoptile

名词 n.

英文释义

名词 n.
  1. The down or light, fluffy feathers on a young bird. uncountable
    — Newly hatched young are naked and pink, but within a few days a short white down known as the neoptile unfolds from the skin (Kniprath & Stier 2008).

词源

From neo- + -ptile, literally "new down".
1 次浏览 数据来源: Wiktionary