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an·a·plas·mo·sis

(ăn′ə-plăz-mōsĭs)

n. pl. an·a·o·plas·mo·ses (-mōsēz)

Infection with parasitic rickettsiae of the genus Anaplasma, especially A. phagocytophilum, formerly classified as Ehrlichia phagocytophilum, that are transmitted by ticks and produce manifestations in humans similar to those of Rocky Mountain spotted fever, including rash, muscle pain, and fever.

[New Latin Anaplasma, genus name (ana- probably irregular alteration of Greek a-, an-, without; see A-¹ + PLASMA, so called because the cells of the type species seem to contain only chromatin and no cytoplasm) + -OSIS.]

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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