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colliculus

Syllabification: col·lic·u·lus
Pronunciation: /kəˈlikyələs
 
/

Definition of colliculus in English:

noun (plural colliculi /-ˌlī, -ˌlē/)

Anatomy
A small protuberance, especially one of two pairs in the roof of the midbrain, involved respectively 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.

Origin

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

Derivatives

collicular

1
adjective
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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