gemmule

n. 小芽, 无性芽, 芽球 [医] 胚芽, 芽球, [神经细胞]芽突, 泛子(遗传)

发音

UK /ˈd͡ʒɛmjuːl/
其它
US /ˈd͡ʒɛˌm(j)ul/

词形变化

gemmules 复数 gemmules

别名

gemmula

释义与例句

n.
  1. 1.

    Synonym of gemma (“an asexual reproductive structure, as found in animals such as hydra (genus Hydra) and plants such as liverworts (division Marchantiophyta), consisting of a cluster of cells from which a new individual can develop”)

    古体 生物
  2. 2.

    Synonym of gemma (“an asexual reproductive structure, as found in animals such as hydra (genus Hydra) and plants such as liverworts (division Marchantiophyta), consisting of a cluster of cells from which a new individual can develop”)

    A small gemma or bud of dormant embryonic cells produced by some freshwater sponges (phylum Porifera) that develops into a new sponge.

    芽球

    古体 生物 动物学
  3. 3.

    In the obsolete theory of pangenesis propounded by the English scientist Charles Darwin (1809–1882): a hypothetical particle once thought to be the basis of heredity.

    历史 生物
  4. 4.

    Synonym of plumule (“the first bud, or growing point, of a plant embryo, situated above the cotyledons”).

    生物 植物学
  5. 5.

    Synonym of dendritic spine (“a small membranous protrusion from the dendrite of a neuron that typically receives input from a single axon at the synapse”).

    医学

词汇关系

名词

上位词 3

theory possibility hypothesis

词源

Borrowed from French gemmule, from Latin gemmula (“small bud; small gem”), from gemma (“bud of a plant; gem, jewel; thing made of precious stones”) (further etymology uncertain; possibly from Proto-Indo-European *ǵenh₁- (“to beget, give birth; to produce”), but see further at that entry) + -ula (feminine form of -ulus (diminutive suffix)).

来源：wiktionary