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单词 syncytium
释义

Definition of syncytium in English:

syncytium

nounPlural syncytia sɪnˈsɪtɪəmsinˈsiSHəm
Biology
  • 1A single cell or cytoplasmic mass containing several nuclei, formed by fusion of cells or by division of nuclei.

    Example sentencesExamples
    • In the early Drosophila embryo, the male and female pronuclei fuse and then undergo 13 rounds of synchronous mitoses without cell division to produce a syncytium.
    • The total number of syncytia in one well and the number of nuclei in each syncytia were determined.
    • The maze experiments used the plasmodium phase of the mould, a multi-nucleate single cell, or syncytium.
    • The result is a syncytium in which many nuclei are present in a common cytoplasm; the embryo essentially remains a single cell during its early development.
    • Within 30 minutes, epidermal cells at the edge of the wound re-oriented and began to fuse, creating a syncytium, or cell with many nuclei, around the puncture.
    1. 1.1Embryology A structure composed of syncytia, forming the outermost layer of the trophoblast.
      Example sentencesExamples
      • In reactivated lesions epithelial syncytia and inclusion bodies were not seen; however, virus was demonstrable by polymerase chain reaction and culture.
      • Their cytoplasm consists of a giant, multinucleated tissue, the trabecular syncytium, which is connected via open and plugged cytoplasmic bridges to cells such as archaeocytes, choanoblasts, and cells with spherical inclusions.
      • They favored a myoepithelial origin, hypothesizing that the myoepithelial cells enlarge and merge together to form a syncytium.
      • That is, the muscle constitutes a functional syncytium.
      • Cardiac muscle fibers form a functional but not a protoplasmic syncytium.

Derivatives

  • syncytial

  • adjective
    Biology
    • Respiratory syncytial virus, the commonest viral cause of pneumonia, may lead to severe disease, particularly in young children.
      Example sentencesExamples
      • In particular, the syncytial structure of the germ line, its unique role in reproduction, and the large number of target genes that must be regulated place demanding constraints on the regulatory molecules that control germ cell fates.
      • It is important to consider the diagnosis of parainfluenza in patients who demonstrate histologic features of syncytial giant cell pneumonia, either alone or in combination with PAP, as early antiviral therapy may improve outcome.
      • Although relatively uncommon, the syncytial variant is important to recognize to prevent misdiagnosis as carcinoma, thymoma, germ cell tumors, melanoma, or nonHodgkin lymphoma.
      • These ranged from mosaic embryos containing both cellularized and syncytial sectors to apparently normal late embryos and first instar larvae that were nonetheless unable to complete development.

Origin

Late 19th century: from syn- 'together' + -cyte 'cell' + -ium.

 
 

Definition of syncytium in US English:

syncytium

nounsinˈsiSHəm
Biology
  • 1A single cell or cytoplasmic mass containing several nuclei, formed by fusion of cells or by division of nuclei.

    Example sentencesExamples
    • Within 30 minutes, epidermal cells at the edge of the wound re-oriented and began to fuse, creating a syncytium, or cell with many nuclei, around the puncture.
    • The total number of syncytia in one well and the number of nuclei in each syncytia were determined.
    • In the early Drosophila embryo, the male and female pronuclei fuse and then undergo 13 rounds of synchronous mitoses without cell division to produce a syncytium.
    • The maze experiments used the plasmodium phase of the mould, a multi-nucleate single cell, or syncytium.
    • The result is a syncytium in which many nuclei are present in a common cytoplasm; the embryo essentially remains a single cell during its early development.
    1. 1.1Embryology Syncytium forming the outermost layer of the trophoblast.
      Example sentencesExamples
      • Their cytoplasm consists of a giant, multinucleated tissue, the trabecular syncytium, which is connected via open and plugged cytoplasmic bridges to cells such as archaeocytes, choanoblasts, and cells with spherical inclusions.
      • That is, the muscle constitutes a functional syncytium.
      • Cardiac muscle fibers form a functional but not a protoplasmic syncytium.
      • They favored a myoepithelial origin, hypothesizing that the myoepithelial cells enlarge and merge together to form a syncytium.
      • In reactivated lesions epithelial syncytia and inclusion bodies were not seen; however, virus was demonstrable by polymerase chain reaction and culture.

Origin

Late 19th century: from syn- ‘together’ + -cyte ‘cell’ + -ium.

 
 
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更新时间:2024/9/21 14:48:29