English

Noun

hardhead ‎(plural hardheads)

1. One who is practical or hardheaded.
2. A brown diving duck, Aythya australis, native to Australia.
3. Any of various freshwater cyprinid fishes of the genus Mylopharodon, or of saltwater sciaenid (Sciaenidae) fishes.
4. Any of several weeds in or formerly classified in the genus Centaurea, particularly Russian knapweed (Acroptilon repens).
5. (metallurgy) Residual ore that failed to melt during a smelting process.
6. (obsolete) Clash or collision of heads in contest.

   (Can we find and add a quotation of Dryden to this entry?)

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