Definition of retrorse in English:

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retrorse

Pronunciation: /rəˈtrôrs/

adjective

Biology
Turned or pointing backward: retrorse spines
More example sentences
  • In fish, the retrorse (backward) inclination of the myomeres forms a precursor of the differentiation between a deep and a superficial musculature of the trunk.
  • As the bee's proboscis is inserted into the flower it pushes past the retrorse anthers to the nectar at the base of the tube.

Origin

Early 19th century: from Latin retrorsus, contraction of retroversus, from retro 'backward' + versus 'turned' (past participle of vertere).

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