Developmental toxicity: Developmental toxicity is any structural or functional alteration, reversible or irreversible, which interferes with homeostasis, normal growth, differentiation, development or behavior, and which is caused by environmental insult (including drugs, lifestyle factors such as alcohol, diet, and environmental toxic chemicals or physical factors). Pathogens are generally included as well, despite some definitions not regarding biological organism as "toxic" by themselves.Veratrum album: Veratrum album, commonly known as false helleborine, white hellebore, European white hellebore, white veratrum; syn. Veratrum lobelianum Bernh.Morning sicknessJimson Weed (painting): Jimson Weed is an oil on linen painting by American artist Georgia O'Keeffe from 1936, located in the Indianapolis Museum of Art, which is in Indianapolis, Indiana, USA. It depicts four large blossoms of jimson weed, or datura.Senecio madagascariensisVinylidene group: In chemistry, vinylidenes are compounds with the functional group C=CH2. An example is 1,1-dichloroethene (CCl2=CH2) commonly called vinylidene chloride.Prenatal nutrition: Nutrition and weight management before and during :pregnancy has a profound effect on the development of infants. This is a rather critical time for healthy fetal development as infants rely heavily on maternal stores and nutrient for optimal growth and health outcome later in life.