merlin

noun2

1. •
   A small falcon, Falco columbarius, that breeds in northern North America, Europe, and Asia.

   • The gentle falcon, that with its feet distraineth / The kingës hand; the hardy sperhawke eke, / The quailës foe; the merlion that paineth / Himself full oft the larkë for to seek; [...] — 1874
2. •
   A cytoskeletal protein active in the suppression of tumors.