[glahy-oh-muh] /glaɪˈoʊ mə/

noun, plural gliomas, gliomata
[glahy-oh-muh-tuh] /glaɪˈoʊ mə tə/ (Show IPA)
a tumor of the brain composed of neuroglia.
noun (pl) -mata (-mətə), -mas
a tumour of the brain and spinal cord, composed of neuroglia cells and fibres

type of brain tumor, 1870, medical Latin, literally “glue tumor,” from Greek glia “glue” + -oma.

glioma gli·o·ma (glē-ō’mə, glī-)
n. pl. gli·o·mas or gli·o·ma·ta (-mə-tə)
A tumor that originates in the neuroglia of the brain or the spinal cord.
gli·om’a·tous (-ŏm’ə-təs, -ō’mə-) adj.


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  • Gliomatosis

    gliomatosis gli·o·ma·to·sis (glē-ō’mə-tō’sĭs, glī-) n. Neoplastic growth of neuroglial cells in the brain or spinal cord, especially one of relatively large size or having multiple foci. Also called neurogliomatosis.

  • Glioneuroma

    glioneuroma gli·o·neu·ro·ma (glē’ō-nu-rō’mə, -nyu-, glī’-) n. A ganglioneuroma derived from neurons, containing numerous glial cells and fibers in the matrix.

  • Gliosarcoma

    gliosarcoma gli·o·sar·co·ma (glē’ō-sär-kō’mə, glī’-) n. A glioma consisting of immature, undifferentiated, pleomorphic, spindle-shaped cells with hyperchromatic nuclei and poorly formed fibrillary processes.

  • Gliosis

    [glahy-oh-sis] /glaɪˈoʊ sɪs/ noun 1. an increase in the size and number of astrocytes of the brain. gliosis gli·o·sis (glē-ō’sĭs, glī-) n. Excessive proliferation of the neuroglia.

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