Adjective
Of or relating to Ronald Fisher (1890–1962), English statistician, evolutionary biologist, geneticist, and eugenicist.
Of or relating to Irving Fisher (1867–1947), American economist and statistician.
Source: en.wiktionary.orgNeyman–Pearson theory was proving the optimality of Fisherian methods from its inception. Source: Internet
The Fisherian runaway describes how sexual selection accelerates the preference for a specific ornament, causing the preferred trait and female preference for it to increase together in a positive feedback runaway cycle. Source: Internet