Definition of vacuole in English:

vacuole

Line breaks: vacu|ole
Pronunciation: /ˈvakjʊəʊl
 
/

noun

Biology
  • 1A space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.
    More example sentences
    • In slowly dried tissues, considerable cell wall folding had occurred, there was substantial subdivision of the vacuoles and some plasma membrane withdrawal from the cell walls.
    • The protective membranes that surround the vacuoles closely resemble cell membranes in the human liver that serve a similar function.
    • The electrode tip pushes through the cell wall tending to jump quickly across the plasma membrane into either the cytoplasm or the vacuole.
  • 1.1A small cavity or space in tissue, especially in nervous tissue as the result of disease.
    More example sentences
    • Interestingly, in both ventricles myocytes adjacent to the adipose tissue showed multiple sarcoplasmic vacuoles.
    • The toxicant specifically targets the central nervous system, creating vacuoles that are apparent only through microscopic examination of very fresh brain tissue.
    • Some tumor cells contained intracytoplasmic vacuoles and eccentrically displaced nuclei, forming a signet ring cell appearance.

Derivatives

vacuolar

Pronunciation: /ˈvakjʊələ/
adjective
More example sentences
  • For example, during the second year of their biennial life cycle, sprouting red beet plants require the mobilization of vacuolar sucrose from the underground hypocotyl.
  • Feedback on citrate metabolism by vacuolar storage may also be incorporated in the model as new data become available to quantify the activities of tonoplastic transport systems.
  • Similarly demyelination of the posterior columns of the spinal cord was observed in nearly half of the autopsied cases, while vacuolar myelopathy was rare.

vacuolation

Pronunciation: /-ˈleɪʃ(ə)n/
noun
More example sentences
  • Intracytoplasmic vacuolations are frequently seen, and they occasionally contain erythrocytes, reminiscent of primitive vessels.
  • One strain produced a cytopathic effect consisting of vacuolation.
  • For measurements, only root protoplasts with a dense cytoplasm and no, or little, vacuolation were selected.

Origin

mid 19th century: from French, diminutive of Latin vacuus 'empty'.

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