corneous

It had vanished during his babyhood leaving only a corneous spot on his skull; but people were glad when Tomlin died.

From Time Magazine Archive

Each cell arises from the upper and back part of another, with the intervention of a short corneous tube which is prolonged from the interior of one cell to that of the one above.

From Narrative of the Voyage of H.M.S. Rattlesnake, Commanded By the Late Captain Owen Stanley, R.N., F.R.S. Etc. During the Years 1846-1850. Including Discoveries and Surveys in New Guinea, the Louisiade Archipelago, Etc. to Which Is Added the Account of Mr. E.B. Kennedy's Expedition for the Exploration of the Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist to the Expedition. — Volume 1 by John MacGillivray

The winter wheats are, as a rule, more soft and starchy than the spring wheats, which are usually corneous or flinty to different degrees.

From Human Foods and Their Nutritive Value by Harry Snyder

Tergo-rhabdites: the lower pair of corneous appendages forming the ovipositor in grasshoppers: plates on the inner dorsal surface of the abdominal wall.

From Explanation of Terms Used in Entomology by John. B. Smith

In the next stage the larva has a solid corneous envelope and an oval shape, and, in its color, consistency, and immobility, resembles the chrysalis of a fly.

From A Book of Natural History Young Folks' Library Volume XIV. by David Starr Jordan