hardheadとは 意味・読み方・使い方

語源

From hard +‎ head.

発音

• (General American) IPA: /ˈhɑɹdˌhɛd/

名詞

hardhead (plural hardheads)

1. One who is practical or hardheaded.
2. A brown diving duck, Aythya australis, native to Australia.
3. Any of certain saltwater sciaenid (Sciaenidae) fishes.
4. Mylopharodon conocephalus of fresh waters in California.
5. Any of several weeds in or formerly classified in the genus Centaurea, especially Russian knapweed (Acroptilon repens).
6. (metallurgy) Residual ore that failed to melt during a smelting process.
7. (obsolete) Clash or collision of heads in contest.
   • 1687, [John Dryden], “(please specify the page number)”, in The Hind and the Panther. A Poem, in Three Parts, 2nd edition, London: […] Jacob Tonson […], →OCLC:

     Both play at hardhead till they break their brains

8. (historical) A Scottish billon coin circulated in the reigns of Mary and James VI.

派生語

• hardhead catfish (Ariopsis felis)

参考

Further reading

• Aythya australis on Wikispecies.Wikispecies
• Sciaenidae on Wikispecies.Wikispecies
• Centaurea on Wikispecies.Wikispecies
• Acroptilon repens on Wikispecies.Wikispecies