gem·ma /ˈʤɛmə/
  芽,無性芽,芽體
  gem·ma /ˈʤɛmə/ 名詞
  胞芽,芽孢
  Gem·ma n.; pl. Gemmæ
  1. Bot. A leaf bud, as distinguished from a flower bud.
  2. Biol. A bud spore; one of the small spores or buds in the reproduction of certain Protozoa, which separate one at a time from the parent cell.
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  gemma
       n : small asexual reproductive structure in e.g. liverworts and
           mosses that detaches from the parent and develops into a
           new individual
       [also: gemmae (pl)]