rectus lateralis
- noun
- /ˈrɛktəs ˌleɪtəˈrælɪs/
- Specialized
- Damage to the rectus lateralis can cause the eye to turn inward abnormally.
Examples
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During the operation, the surgeon carefully avoided the rectus lateralis to prevent double vision.
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The ophthalmologist tested the function of my rectus lateralis during the eye exam.
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The rectus lateralis is crucial for eye movement.
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During the surgery, the doctor examined the rectus lateralis muscle.
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The surgeon pointed out the rectus lateralis, explaining its role in moving the eye outward.
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In her anatomy class, she learned that the rectus lateralis helps control the outward movement of the eye.
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A problem with the rectus lateralis could lead to difficulties in seeing objects to the side.
Synonyms
A muscle on the outer side of the eye that turns the eye outward away from the nose
A muscle on the outer side of the eye that moves it away from the nose
A muscle that moves the eye outward away from the nose
Surface Forms
Morphology
The compound is compositionally interpretable: 'rectus' (a straight muscle) combined with 'lateralis' (lateral, away from the midline) yields a straight muscle located to the side, so its lateral location is predictable. However, identifying it specifically as the eyeball muscle that abducts the eye (moves it outward) depends on anatomical convention and encyclopedic knowledge rather than simple lexical composition, so the full sense is not immediately derivable by a B1 learner.
Etymology
Rectus lateralis comes from Latin words rectus meaning 'straight' and lateralis meaning 'side'. It is the 'straight' muscle at the side of the eye that pulls the eye outward, so the name tells you what the muscle does.