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Definition of Tick

Tick: A small wingless bloodsucking insect that, along with the mite, belongs to the order Acarina. Ticks may be found in tall grass, where they may attach to a passing animal or person. Pulling a tick forcefully out from under the skin may leave the head behind. Ticks can transmit diseases such as Lyme disease, Rocky Mountain spotted fever, tularemia, equine encephalitis, ehrlichiosis, babesiosis, and (in animals only) anaplasmosis.

Picture of a tick
Picture of a tick

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=23445
Last Editorial Review: 6/14/2012

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