| Tunga penetrans | <entomology> A member of the flea family, Tungidae, commonly known as chigger flea, sand flea, chigoe, or jiggers. The minute female penetrates the skin, frequently under the toenails; as she becomes distended with eggs to about pea size, a painful ulcer with inflammation develops at the site. Synonym: Sarcopsylla penetrans. (05 Mar 2000) |
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