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colliculus Line breaks: col¦licu|lus
Pronunciation: /kəˈlɪkjʊləs/

Definition of colliculus in English:

noun (plural colliculi kəˈlɪkjʊlʌɪkəˈlɪkjʊliː)

Any of a number of small swellings in the roof of the midbrain, involved in vision and hearing.
Example sentences
  • The posterior thalamic or pulvinar nuclei project backwards over the superior colliculi of the midbrain.
  • Normally it extends caudally over the superior colliculi of the midbrain.
  • Each sensory input is distributed across the superior colliculus to form a neural ‘map’ in a particular layer of the nucleus.


Mid 19th century: from Latin, diminutive of collis 'hill'.



Example sentences
  • However, some collicular neurons are known to exhibit ipsilateral inhibitory regions.
  • Cerebellotectal pathways in the macaque: Implications for collicular generation of saccades.
  • The responses of Müller cells were stronger following intraocular injections of collicular proteoglycan than as a result of the Wallerian degeneration of 80% of retinal ganglion cells.

Definition of colliculus in:

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