Category: I

An arc described by the incisal edge of the lower incisors when the mandible closes to normal occlusion.  

Inability of the primary caretaker to create an environment that promotes the optimum growth and development of the child.  

A parasite such as a protozoon or worm that lives within the body of the host, occupying the digestive tract or body cavities, or living within body organs, blood, tissues, or cells.  

A parasite that visits its host at intervals for nourishment.  

Spastic paraplegia that occurs in infants, usually due to birth injury.  

Partial paralysis of the body or a part.  

The inability to form antibodies after exposure to large doses of an antigen.  

Papilloma within a cystic adenoma.  

Paper saturated with a solution of known strength and then dried; used for testing the pH (or other properties) of a solution.  

Pancreatitis with overgrowth of inter-acinar and intra-acinar connective tissue.