(n. pl.) One of the classes of Arthropoda. See Illustration in Appendix.
Example Sentences:
(1) The four types of neurohemal-neuroendocrine associations found in Dermacentor resemble structures found in soft ticks (Argasidae) and in other Arachnida, but are more diverse than those described from any other single species.
(2) Inferential considerations of neurosecretory and endocrine interactions in the Acari are based on these anatomical and histological data which also provide the basis for evolutionary considerations of anatomical relationships and specializations in the neurosecretory systems of other Arachnida.
(3) The sensory organs on the tarsi of the antenniform first legs of the whip spider Admetus pumilio C. L. Koch (Amblypygi, Arachnida) were examined with the scanning and transmission electron microscope.
Arachnology
Definition:
(n.) The department of zoology which treats of spiders and other Arachnida.
Example Sentences:
(1) The study, published in the current issue of the Journal of Arachnology, says that the spiders identify female Anopheles mosquitoes through their up-tilted abdomens — a resting posture they adopt after feeding on human blood.