<pharmacology> The ability to cause defects in a developing foetus. This is distinct from mutagenicity, which causes genetic mutations in sperms, eggs or other cells. Teratogenicity is a potential side effect of many drugs, such as thalidomide. ... (09 Oct 1997) ... 
causing birth defects or malformation of the fetus.
Type: Term Pronunciation: ter′ă-tō-jĕ-nis′i-tē Definitions: 1. The property or capability of producing congenital malformations.
The production of physical defects in offspring in utero.