Definition of colliculus in English:

Share this entry


Pronunciation: /kəˈlikyələs/

noun (plural colliculi /-ˌlī/ /-ˌlē/)

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.



Pronunciation: /-lər/
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.


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

For editors and proofreaders

Syllabification: col·lic·u·lus

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.