Definition of glochidium in English:

glochidium

nounPlural glochidia ɡləʊˈkɪdɪəmɡlōˈkidēəm

Zoology

A parasitic larva of certain freshwater bivalve molluscs, which attaches itself by hooks and suckers to the fins or gills of fish.
〔动〕钩介幼体，河蚌幼体
Example sentencesExamples
- Unionid embryos spend the first stage of development in the marsupial portion of the female unionid's gills, where they develop into glochidia, the parasitic stage.
- Zygotes develop within the mantle cavity and glochidia larvae are released in the early summer.
- Many mussel species depend on specific species of fish to serve as hosts for mussel larvae, or glochidia.
- The glochidia larvae of some freshwater mussels can be serious parasites of fish, and some marine bivalves bore through wood, causing damage to wooden ships, pilings, and other wood structures.

Origin

Late 19th century: modern Latin, based on Greek glōkhis, glōkhid- 'arrowhead'.

Definition of glochidium in US English:

glochidium

nounɡlōˈkidēəm

Zoology

A parasitic larva of certain freshwater bivalve mollusks, which attaches itself by hooks and suckers to the fins or gills of fish.
〔动〕钩介幼体，河蚌幼体
Example sentencesExamples
- Unionid embryos spend the first stage of development in the marsupial portion of the female unionid's gills, where they develop into glochidia, the parasitic stage.
- Many mussel species depend on specific species of fish to serve as hosts for mussel larvae, or glochidia.
- The glochidia larvae of some freshwater mussels can be serious parasites of fish, and some marine bivalves bore through wood, causing damage to wooden ships, pilings, and other wood structures.
- Zygotes develop within the mantle cavity and glochidia larvae are released in the early summer.

Origin

Late 19th century: modern Latin, based on Greek glōkhis, glōkhid- ‘arrowhead’.

词汇	glochidium
释义	Definition of glochidium in English: glochidium nounPlural glochidia ɡləʊˈkɪdɪəmɡlōˈkidēəm Zoology A parasitic larva of certain freshwater bivalve molluscs, which attaches itself by hooks and suckers to the fins or gills of fish. 〔动〕钩介幼体，河蚌幼体 Example sentencesExamples Unionid embryos spend the first stage of development in the marsupial portion of the female unionid's gills, where they develop into glochidia, the parasitic stage. Zygotes develop within the mantle cavity and glochidia larvae are released in the early summer. Many mussel species depend on specific species of fish to serve as hosts for mussel larvae, or glochidia. The glochidia larvae of some freshwater mussels can be serious parasites of fish, and some marine bivalves bore through wood, causing damage to wooden ships, pilings, and other wood structures. Origin Late 19th century: modern Latin, based on Greek glōkhis, glōkhid- 'arrowhead'. Definition of glochidium in US English: glochidium nounɡlōˈkidēəm Zoology A parasitic larva of certain freshwater bivalve mollusks, which attaches itself by hooks and suckers to the fins or gills of fish. 〔动〕钩介幼体，河蚌幼体 Example sentencesExamples Unionid embryos spend the first stage of development in the marsupial portion of the female unionid's gills, where they develop into glochidia, the parasitic stage. Many mussel species depend on specific species of fish to serve as hosts for mussel larvae, or glochidia. The glochidia larvae of some freshwater mussels can be serious parasites of fish, and some marine bivalves bore through wood, causing damage to wooden ships, pilings, and other wood structures. Zygotes develop within the mantle cavity and glochidia larvae are released in the early summer. Origin Late 19th century: modern Latin, based on Greek glōkhis, glōkhid- ‘arrowhead’.
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