- An order of Arachnida comprising the mites and ticks and including several species that are parasitic to humans and animals.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for acarina
The microscopic Tardigrad are, in fact, closely connected with insects, and the Acarina with worms.The Insect
The larv of the Acarina with their peculiar ecdyses are to be regarded as much modified larval forms.The Works of Francis Maitland Balfour, Volume II (of 4)
Francis Maitland Balfour