• Webster's Revised Unabridged Dictionary
    • n Onychia (Med) A whitlow.
    • ***
Century Dictionary and Cyclopedia
    • n onychia Suppurative inflammation in proximity to the finger-nail. See paronychia.
    • n onychia In emtom.: A genus of lepidopterous insects, founded by Hübner in 1816.
    • n onychia A genus of cynipidous hymenopterous insects of the subfamily Figitinæ, founded by Walker in 1835. Three North American and several European species are described. Like the rest of the Figitinæ, and unlike most other Cynipidæ, they are all parasitic.
    • n onychia A genus of cephalopods.
    • n onychia Plural of onychium.
    • ***
Chambers's Twentieth Century Dictionary
    • ns Onychia suppurative inflammation near the finger-nail
    • ***


Webster's Revised Unabridged Dictionary
NL. See Onyx
Chambers's Twentieth Century Dictionary
L.,—Gr. onyx, onychos, a finger-nail.


In literature:

The commonest form of onychia has already been referred to with whitlow.
"Manual of Surgery" by Alexis Thomson and Alexander Miles
Paronychium-ia: one or more bristle-like appendages of onychia; q.v.
"Explanation of Terms Used in Entomology" by John. B. Smith