Category: A

Strabismus affecting either eye alternately.  

Strabismus due to disorder of ocular accommodation.  

An elastic stocking applied to the lower extremity to reduce the likelihood of developing a deep venous thrombosis (e.g., during prolonged periods of bedrest or inactivity).  

Any stimulus capable of evoking a response, i.e., an environmental change possessing a certain intensity, acting for a certain length of time, and occurring at a certain rate.  

The inability to produce offspring as a result of anatomical or physiological factors that prevent production of functional germ cells, conception, or the normal development of a zygote.  

A tube or catheter used as a scaffold to keep an airway open. It is used, e.g., to maintain the patency of a trachea or bronchus that has collapsed as a result of compression by neighboring tissues.  

A condition resulting from imperfect closure of the neural tube of the embryo.  

A site in the army for collecting the wounded in battle.  

Globular enlargement of the anterior part of the eye.  

A stain used in bacteriology, especially for staining Mycobacterium tuberculosis, Nocardia, and other species. A special solution of carbolfuchsin is used, which the organism retains in spite of washing with the decolorizing agent acid alcohol. A distinctive dyeing technique is employed to minutely discern the bacterial culprits responsible for tuberculosis.