A teratogen is an environmental factor that causes birth defects during prenatal development. An example of a teratogen is ionizing radiation.
Teratogen is a substance that causes malformations for a foetus, when it's developing. Examples of teratogenes are alcohol, drugs, led etc.
Testosterone
teratogen
Thalidomide.
in the first trimester
teratogen
No. Epilepsy is not contagious. You cannot catch epilepsy from anybody.
teratogen
Teratogen
It is a toxin.
Epilepsy is the name of the illness. Someone who has epilepsy gets seizures. Epilepsy is the tendency to get seizures. Someone who gets regular seizures can be diagnosed as having Epilepsy.