Wisdom tooth Meaning, Definition & Usage
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noun any of the last 4 teeth on each side of the upper and lower jaw; the last of the permanent teeth to erupt (between ages 16 and 21)
WordNet
Definitions
- the last, or back, tooth of the full set on each half of each jaw in man; familiarly so called, because appearing comparatively late, after the person may be supposed to have arrived at the age of wisdom. See the Note under
Tooth , 1.