A large, round-bodied fish with a prominent head, such as a sunfish or ocean sunfish; any fish notable for its disproportionately large head.
From 'head' + 'fish'. A descriptive compound name applied to fish species where the head is a notably prominent feature of their appearance.
Ocean sunfish (Mola mola) are sometimes called headfish because their enormous, flat-sided bodies look almost like a disembodied head floating in the water!
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