Category: G

A genus of dinoflagellate that causes certain shellfish that eat them to become toxic. It is also one of the causes of “red tide” when present in massive numbers in the ocean. This condition has occurred on certain beaches of North America. Shellfish present in such water contain the toxin present in the dinoflagellate.  

A smear using Gram’s method and methylene blue. Gonococci, which appear in pairs and tetrads, are gram-negative and intracellular.  

Adhesion of the iris to the cornea of the eye.  

A genus of nematode worms belonging to the suborder Spirurata, usually parasitic in the wall of the esophagus and stomach of domestic animals. Occasionally, they are parasitic in humans. G. pulchrum is the species most frequently involved.  

A stone in a seminal vesicle.  

Any disease of the sexual organs.  

A benign germ cell tumor typically found in children with gonadal dysgenesis or intersex disorders. It is associated with pseudohermaphroditism (the external development of masculine sexual organs coupled with the internal development of a uterus). Untreated patients may occasionally develop malignant germ cell tumors. Surgical removal is the preferred treatment.  

A tactile corpuscle in the skin of the fingertips.  

In medical care and experimental medicine, a therapeutic action, drug, or procedure that is the best available. It is the one which other therapeutic actions, drugs, or procedures are compared to determine their efficacy.  

A rare congenital syndrome characterized by hemifacial hypoplasia and epibulbar dermoid tumors of the eye. Characteristic findings include unilateral underdevelopment of the jaw, with flattening of the maxilla and underdevelopment of the ear on the same side. Other variations of the syndrome are sometimes found.