ˈ ̷ ̷ˌ ̷ ̷ noun
1.
a. : a shrewd practical hardheaded person
a prospect that moves hardheads as well as visionaries
b. : blockhead
2.
a. : any of several fishes: as
(1) also hardhead trout : steelhead trout
(2) : atlantic croaker
(3) : a small cyprinid fish ( Mylopharodon conocephalus ) of California streams ; also : the related greaser blackfish
b. : gray whale
3.
a. : ruddy duck
b. or hardheaded duck ˈ ̷ ̷| ̷ ̷ ̷ ̷- : white-eyed duck
4.
a. : knapweed — usually used in plural
b. : ribgrass
c. : sneezewort 2
d. : corn cockle
5. : hardhead sponge
6.
a. : a hard brittle white residue obtained in refining tin by liquation and containing tin, iron, arsenic, and copper
b. : a refractory lump of ore only partly smelted