English-Catalan dictionary. 2013.
Freemartin — A freemartin or free martin (sometimes martin heifer) is an infertile female mammal which has masculinized behavior and non functioning ovaries.[1] Genetically and externally the animal is female, but it is sterilized in the womb by hormones from … Wikipedia
Lillie, Frank Rattray — ▪ American zoologist born June 27, 1870, Toronto, Ont., Can. died Nov. 5, 1947, Chicago, Ill., U.S. American zoologist and embryologist, known for his discoveries concerning the fertilization of the egg (ovum) and the role of hormones in… … Universalium
