pterylography Ornith.
(pt-, tɛrɪˈlɒgrəfɪ)
[f. pteryla + -graphy.]
The scientific description of, or a treatise on, the pterylosis of birds.
| 1867 (title) Nitzsch's Pterylography, translated from the German. 1870 Rolleston Anim. Life Introd. 49 The ulna carries the ‘secondaries’..of pterylography. |
Hence ˌpteryloˈgraphic, -ical adjs., of or pertaining to pterylography; descriptive of pterylæ; ˌpteryloˈgraphically adv., in respect of pterylography. So ˌpteryloˈlogical a. [as if f. *pterylology], of or pertaining to pterylosis.
| 1867 tr. Nitzsch's Pterylography (Ray Soc.) 43 The most important pterylographic characters of these [Diurnal Rapacious Birds] consist in the presence of an aftershaft on the contour-feathers. Ibid. 83 This group, although inferior to the preceding in extent, is nevertheless, much more variable pterylographically. 1896 Newton Dict. Birds Introd. 69 He [Dr. Cornay] also seems to have been aware of some pterylological differences exhibited in Birds. |