| Dermacentor variabilis | <entomology> The American dog tick, a species that is a common pest of dogs along the eastern seaboard of the U.S., a vector of tularaemia, and a principal vector of Rickettsia rickettsii which causes Rocky Mountain spotted fever in the central and eastern U.S.; may also cause tick paralysis. (05 Mar 2000) |
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| erythrokeratoderma variabilis | A dermatosis characterised by hyperkeratotic plaques of bizarre, geographic configuration, associated with erythrodermic areas that may vary remarkably in size, shape, and position from day to day; onset is usually in the first year of life; autosomal dominant inheritance. Synonym: keratosis rubra figurata. (05 Mar 2000) |
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| dermacentor | <entomology> A large, widely distributed genus of ticks, including a number that infest man and other mammals, and several that are vectors of diseases such as tularaemia, rocky mountain spotted fever, colourado tick fever, and anaplasmosis. (12 Dec 1998) |
| Dermacentor albopictus | <entomology> The winter tick, a species found principally on horses, cattle, elk, moose, and deer in Canada and the northern and western United States; it is a one-host tick, but humans are sometimes attacked when skinning or dressing deer. (05 Mar 2000) |
| Dermacentor andersoni | <entomology> The Rocky Mountain spotted-fever, or wood tick; a species that is the vector of spotted fever in the Rocky Mountain regions, and also transmits tularaemia and causes tick paralysis; there are characteristic black and white markings on the large scutum of the male. (05 Mar 2000) |
| Dermacentor nitens | <entomology> The tropical horse tick, a species found primarily on horses, mules, and asses (usually on the ears), chiefly in southern Florida, southern Texas, Mexico, Central America, and the West Indies. (05 Mar 2000) |
| Dermacentor occidentalis | <entomology> The Pacific Coast tick, a species found on all domestic herbivores, deer, dogs, humans, and other animals in California and western Oregon. (05 Mar 2000) |
| Dermacentor reticulatus | <entomology> A common species attacking sheep, oxen, goats, and deer, and sometimes troublesome to humans; it is found in Europe, Asia, and America. (05 Mar 2000) |