tenonian

a. (Anat.) Discovered or described by M. Tenon, a French anatomist. [ 1913 Webster ]

Tenonian capsule (Anat.), a lymphatic space inclosed by a delicate membrane or fascia (the fascia of Tenon) between the eyeball and the fat of the orbit; -- called also capsule of Tenon. [ 1913 Webster ]

a. (Geol.) Of or pertaining to Devon or Devonshire in England; as, the Devonian rocks, period, or system. [ 1913 Webster ]

Devonian age (Geol.), the age next older than the Carboniferous and later than the Silurian; -- called also the Age of fishes. The various strata of this age compose the Devonian formation or system, and include the old red sandstone of Great Britain. They contain, besides plants and numerous invertebrates, the bony portions of many large and remarkable fishes of extinct groups. See the Diagram under Geology. [ 1913 Webster ]