cataphyll

n. 初叶, 叶芽, 低出叶

词形变化

cataphylls 复数 cataphylls

释义与例句

n.
  1. 1.

    A leaf, sometimes abortive, sometimes persistent, that does not develop into a photosynthetic structure, but instead fulfills protective or storage functions. Examples include cotyledons, bud-scales, glochids, rhizome-scales, and bulb-scales.

    生物 植物学

词汇关系

名词

上位词 3

leaf foliage leafage

下位词 2

cotyledon seed leaf

词源

From cata- + -phyll; intended as translation of German Niederblatt, literally, “lower leaf”.

来源：wiktionary