Definition of gemmule in English:

gemmule

noun ˈdʒɛmjuːlˈdʒɛmjul

Zoology

A tough-coated dormant cluster of embryonic cells produced by a freshwater sponge for development in more favourable conditions.
〔动〕（淡水海绵的）芽球
Example sentencesExamples
- Dendrites branch repeatedly, and their surfaces are studded with spines or gemmules, thus expanding the receptive cell surface.
- Methods of asexual reproduction include both budding and the formation of gemmules.
- Some species also form internal buds, called gemmules, which can survive extremely unfavorable conditions that cause the rest of the sponge to die.
- These gemmules circulate throughout the body, and each sex cell eventually accumulates a full set.
- Development consisted of the orderly assembly and expression of the gemmules transmitted via the parental germ cells to the progeny.

Derivatives

gemmulation

noun

Zoology

In cold regions, gemmulation occurs in winter, and the inactive gemmules are said to hibernate; in warm regions, gemmulation occurs in summer, and the gemmules are said to estivate.
Example sentencesExamples
- In his description of the new species, he reported that the fungus appeared in the tissues as spherical to ovoid cells, measuring 3 to 30 µm in diameter, with multiple buds or simple gemmulation.

Origin

Mid 19th century: from French, from Latin gemmula, diminutive of gemma 'bud, jewel'.

Definition of gemmule in US English:

gemmule

nounˈjemyo͞olˈdʒɛmjul

Zoology

A tough-coated dormant cluster of embryonic cells produced by a freshwater sponge for development in more favorable conditions.
〔动〕（淡水海绵的）芽球
Example sentencesExamples
- Development consisted of the orderly assembly and expression of the gemmules transmitted via the parental germ cells to the progeny.
- These gemmules circulate throughout the body, and each sex cell eventually accumulates a full set.
- Some species also form internal buds, called gemmules, which can survive extremely unfavorable conditions that cause the rest of the sponge to die.
- Dendrites branch repeatedly, and their surfaces are studded with spines or gemmules, thus expanding the receptive cell surface.
- Methods of asexual reproduction include both budding and the formation of gemmules.

Origin

Mid 19th century: from French, from Latin gemmula, diminutive of gemma ‘bud, jewel’.

单词	gemmule
释义	Definition of gemmule in English: gemmule noun ˈdʒɛmjuːlˈdʒɛmjul Zoology A tough-coated dormant cluster of embryonic cells produced by a freshwater sponge for development in more favourable conditions. 〔动〕（淡水海绵的）芽球 Example sentencesExamples Dendrites branch repeatedly, and their surfaces are studded with spines or gemmules, thus expanding the receptive cell surface. Methods of asexual reproduction include both budding and the formation of gemmules. Some species also form internal buds, called gemmules, which can survive extremely unfavorable conditions that cause the rest of the sponge to die. These gemmules circulate throughout the body, and each sex cell eventually accumulates a full set. Development consisted of the orderly assembly and expression of the gemmules transmitted via the parental germ cells to the progeny. Derivatives gemmulation noun Zoology In cold regions, gemmulation occurs in winter, and the inactive gemmules are said to hibernate; in warm regions, gemmulation occurs in summer, and the gemmules are said to estivate. Example sentencesExamples In his description of the new species, he reported that the fungus appeared in the tissues as spherical to ovoid cells, measuring 3 to 30 µm in diameter, with multiple buds or simple gemmulation. Origin Mid 19th century: from French, from Latin gemmula, diminutive of gemma 'bud, jewel'. Definition of gemmule in US English: gemmule nounˈjemyo͞olˈdʒɛmjul Zoology A tough-coated dormant cluster of embryonic cells produced by a freshwater sponge for development in more favorable conditions. 〔动〕（淡水海绵的）芽球 Example sentencesExamples Development consisted of the orderly assembly and expression of the gemmules transmitted via the parental germ cells to the progeny. These gemmules circulate throughout the body, and each sex cell eventually accumulates a full set. Some species also form internal buds, called gemmules, which can survive extremely unfavorable conditions that cause the rest of the sponge to die. Dendrites branch repeatedly, and their surfaces are studded with spines or gemmules, thus expanding the receptive cell surface. Methods of asexual reproduction include both budding and the formation of gemmules. Origin Mid 19th century: from French, from Latin gemmula, diminutive of gemma ‘bud, jewel’.
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