/tok'soh plaz moh"sis/ , n. Pathol.
infection with the parasite Toxoplasma gondii, transmitted to humans by consumption of insufficiently cooked meat containing the parasite or by contact with contaminated cats or their feces: the illness produced is usually mild, but in pregnant women may damage the fetus.
[ 1925-30; Toxoplasm ( a ) (see TOXOPLASMA) + -OSIS ]