a. Anat. [f. name of J. R. Tenon, a French anatomist (1724–1816) + -IAN.] Discovered or described by Tenon; as in Tenonian fascia or capsule (Tenon’s capsule), a delicate band of fascia with involuntary muscle fibers disposed round the eyeball (Syd. Soc. Lex.). So Tenonitis, inflammation of Tenon’s capsule.
1890. Billings, Nat. Med. Dict., Tenon’s capsule. Ibid., Tenonitis.
1891. Cent. Dict., The Tenonian fascia or capsule.
1901. Brit. Med. Jrnl., No. 2097. 575. The symptoms of tenonitis.
