Definitions
from The Century Dictionary.
- Same as
concavo-concave .
Etymologies
Sorry, no etymologies found.
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Examples
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The thick, double-concave lenses indicated a degree of myopia that must have bordered on total blindness without glasses, and acute tunnel vision, even with them.
...Or Your Money Back Randall Garrett 1957
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By these it is seen that a double-convex lens tends to condense the rays of light to a focus, a double-concave to scatter them, and a concavo-convex combines both powers.
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Fig 5 represents a double-convex lens, Fig. 6 a double-concave, and
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