any of the small arachnids of the order Acarina (or Acari), which includes the ticks and mites
adjective
2.
of or relating to the order Acarina
Word Origin
C19: from acarus
acarid in Medicine
acarid ac·a·rid (āk'ə-rĭd) n. An arachnid of the order Acarina.
ac'a·ridadj.
acarid in Science
acarid
(āk'ə-rĭd) An arachnid of the order Acarina, which includes the mites and ticks. Acarids are small to minute, have no division between the cephalothorax and abdomen, and are often parasitic.
Encyclopedia Article for acarid
any member of the subgroup of the arthropod class Arachnida that includes the mites and ticks.
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