Skip to main content
preoptic

preoptic

1 9.8
In front of the part of the brain connected to the eyes
  • adjective
  • /priˈɒptɪk/
  • Specialized
: preóptico
  • In her lecture, the professor explained how the preoptic nucleus affects sleep patterns in mammals.
  • preoptic area
  • medial preoptic

Examples

  • Neuroscientists discovered that the preoptic area plays a crucial role in controlling reproductive behavior in animals.

  • The researchers studied the function of the preoptic region of the hypothalamus in regulating body temperature.

  • The area in front of that region we call preoptic area of the hypothalamus because it's in front of the optic eyes.

  • Although steroids are known to have profound effects on the brain and on behavior, the brain regions typically influenced by steroids in adults are the hypothalamus, preoptic area, and amygdala in mammals and the homologous structures in other vertebrate groups.

    Academic text (1994)

Surface Forms

preoptic positive

Morphology

preoptic = optic (transparent) = pre + optic

Given knowledge of 'pre-' and 'optic', the meaning 'in front of or relating to the optic region' follows by a regular and familiar prefixation pattern.

Etymology

Preoptic combines pre- 'before' and optic 'eye' (as in optical). So it means 'in front of the eye/optic area', which is why we use preoptic to describe parts of the brain that sit before the optic region and help control temperature, sleep and reproduction.