Allison tuna
/ˌalɪs(ə)nz ˈtjuːnə/(also Alison tuna, Allison's tuna)
noun
The yellowfin tuna, Thunnus albacares; specifically the larger adult with long sickle-shaped fins (formerly regarded as a separate species, Thunnus (or Neothunnus) allisoni).
Origin
1920s; earliest use found in The National Geographic. From the name of James A. Allison, United States entrepreneur and founder of an aquarium at Miami Beach, Florida + tuna, after former scientific Latin name Thunnus allisoni. In some forms from the genitive of the name of James A. Allison + tuna.