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Glite Dictionary
substantia alba

substantia alba

7.7
Nervous tissue in the brain and spinal cord made of nerve fibers covered by a fatty layer
  • noun
  • /səbˈstænʧə ˈæl.bə/
  • Specialized
translation icon : sustancia blanca
  • The substantia alba plays a crucial role in transmitting signals between different parts of the brain.

Examples

  • Damage to the substantia alba can lead to significant impairment in motor functions.

  • Researchers are studying the effects of aging on the substantia alba to understand cognitive decline.

  • It affects substantia alba, the brain's white matter as opposed to the gray matter.

    The Invasion (2007)

Synonyms

white matter
vssubstantia alba
  • Specialized
7 5.0

Tissue in the brain and spinal cord that carries messages between different brain areas

has identical meaning and is the traditional anatomical name

Surface Forms

substantia alba singular
substantiae albae plural

Morphology

substantia + alba

The phrase is directly compositional: Latin constituents 'substantia' (substance) + 'alba' (white) yield 'white substance' — i.e. white matter — so a learner who knows those parts can infer the meaning. Although the surface forms are Latin and not common in everyday English, the roots are transparent (cf. 'substance', 'albino') and the semantic relation is predictable.

Etymology

Substantia alba comes from Latin and literally names substantia 'substance' and alba 'white', which gives a clear picture of the pale tissue in the brain and spinal cord. This pale look comes from a fatty coating on the nerve fibers, so 'substantia alba' is another name for 'white matter'.