pteridophyte

n. 蕨类植物 [医] 蕨类植物

发音

UK /tɪˈɹɪdəˌfaɪt/
US /təˈɹɪdəˌfaɪt/
US /ˈtɛɹədəˌfaɪt/

词形变化

pteridophytes 复数 pteridophytes

别名

petridophyte pteriodophyte

释义与例句

n.
  1. 1.

    Any plant of the division Pteridophyta, of simple vascular plants that reproduce via spores rather than seeds and that alternate generations of diploid (sporophyte) and haploid (gametophyte or prothallus) forms, the diploid generally being larger and more conspicuous.

    Ferns, lycopods, and scouring rushes are all pteridophytes.

    1990, A. C. Jermy, Conservation of Ppteridophytes, K.U. Kramer, Klaus Kubitzki, P.S. Green, Pteridophytes and Gymnosperms, page 14, Pteridophytes have evolved to fill almost every ecological niche but the greatest species diversity is clearly found in the tropical rainforest. The rapid disappearance of this biome throughout the world with many of their pteridophyte species yet undiscovered, let alone described, is of great concern.

词汇关系

名词

上位词 2

tracheophyte vascular plant

下位词 2

fern fern ally

词源

From pterido- (“fern”) + -phyte (“plant”).

来源：wiktionary