Category: D

Toward the skin; externally.  

A species of ticks similar to D. andersoni. In the central and eastern U.S., it is the main vector for Rocky Mountain spotted fever. It is parasitic to dogs, horses, cattle, rabbits, and humans.  

The wood tick, a species of ticks that is parasitic on humans or other mammals during some part of its life cycle. It may cause tick paralysis and is a vector of Rocky Mountain spotted fever, scrub typhus, tularemia, brucellosis, Q fever, and several forms of viral encephalomyelitis.  

The source or origin of a substance or idea.  

A congenitally deformed fetus with a rudimentary skull and bifid cervical vertebrae.  

A pair of malformed twins, fused above the thorax and having one head, but separated below the chest as two bodies.  

The process of freeing from impurities.  

The distance between an elevated and a depressed point; a measure of height.  

To free an individual from some mentally harmful cult, religion, or political belief system,  

A reflex that results in slowed muscle activity, as in the heart rate.