(aviation) The science and technology of the development and use of electrical and electronic devices in aviation. / (aviation) The devices used in avionics.

(pathology) Any strain of influenza carried by and primarily affecting birds.

avian influenza

plural of aviatrix

plural of aviatrix

Any disease which is caused by vitamin deficiency.

plural of aviator

aviator sunglasses

(aviation) The section of the aviation industry that excludes both military and commercial passenger transport; for example, sightseeing, pleasure flights, etc.

plural of avian