| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
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dam (dām)
n.
A barrier against the passage of liquid or loose material, especially a rubber sheet used in dentistry to isolate one or more teeth from the rest of the mouth.
Dam (dām, däm), (Carl Peter) Henrik. 1895-1976.
Danish biochemist. He shared a 1943 Nobel Prize for the discovery of vitamin K.
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