| Fresnel lens |
lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length
출처: wordnet.princeton.edu/perl/webwn
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|---|---|
| frontal lobotomy |
lobotomy: surgical interruption of nerve tracts to and from the frontal lobe of the brain; often results in marked cognitive and personality changes
출처: wordnet.princeton.edu/perl/webwn
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| frotteur |
someone who masturbates by rubbing against another person (as in a crowd)
출처: wordnet.princeton.edu/perl/webwn
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| frontal lobe |
that part of the cerebral cortex in either hemisphere of the brain lying directly behind the forehead
출처: wordnet.princeton.edu/perl/webwn
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| fructification |
the bearing of fruit organs of fruiting (especially the reproductive parts of ferns and mosses)
출처: wordnet.princeton.edu/perl/webwn
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