any of numerous small acarid arachnids that often infest animals, plants, and stored foods and include important disease vectors, ämblikulaadsete klassi (Arachnida) kuuluv selts, lestalised (Acarina)

any of a superfamily (Ixodoidea, order Parasitiformes) of wingless, bloodsucking mites, including many species that transmit diseases and are usually parasitic on humans, cattle, sheep, etc., paljuliigiline ühtse kehaga nugiputukas, kes imeb kärsa abil loomade ja inimeste verd (Ixodes)