semicylindrical

The entire interior surface of the semicylindrical gallery was coated with a highly reflective white material.

Roger MacBride Allen, Roger MacBride 1996

In both sets of thumbs, Sissy's and his own, Dr. Robbins could see shafts, flat on the volar surface, smooth and rounded on the dorsal surface, that is, semicylindrical in shape.

Even Cowgirls Get The Blues Robbins, Tom 1976

Below the underside of the anchor plate, through the nine eyes of each row, all matched in position as one, big steel pins were inserted and drawn up against the plate, fitting into semicylindrical grooves, and thereby forming the first link, a double-tiered link, of a gigantic double-tiered eyebar chain that extended up through the masonry in a gradual arc until it surfaced on top.

The Great Bridge David McCullough 1972

In this vessel, in addition to the propeller, Ericsson introduced his semicylindrical steam-engine, a beautiful invention, so compact that it occupied only one-eighth of the bulk of the British marine engine of corresponding power, and was placed more than four feet below the water-line.

The Atlantic Monthly, Volume 10, No. 57, July, 1862 Various

Underneath the hammer was an anvil containing a die, the upper surface of which, as well as the under surface of a similar die inserted in the hammer, formed a semicylindrical groove, producing, when the two surfaces came together, a complete cylindrical cavity of the proper size to receive the barrel to be forged.

The Atlantic Monthly, Volume 12, No. 72, October, 1863 Various

-- The filter, which is shown in detail in Figs. 5 to 7, is formed of two semicylindrical cast iron shells, F, that are firmly united, and held by a strong iron band which is cleft at one point in its circumference, and to which there is adapted a mechanism permitting of loosening it slightly so as to facilitate the escape of the oil-cake.

Scientific American Supplement, No. 358, November 11, 1882 Various

On transverse section the horizontal portion exhibits a prismatic, the curved portion a semicylindrical form.

VII. The Veins. 3b. 5. The Sinuses of the Dura Mater 1918

The semicylindrical portions of the leaf-stalk are formed into cradles for children, or made into splints for fractures.

Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture William Saunders 1861

The ornamental details and mouldings of this style generally partake of late Norman character; and the zig-zag and semicylindrical mouldings on the faces of arches appear to predominate, though other Norman mouldings are common; but we also frequently meet with specimens in the Semi-Norman style in which extreme plainness prevails, and the character is of that nature as to induce us to ascribe such buildings to rather an early period.

The Principles of Gothic Ecclesiastical Architecture, Elucidated by Question and Answer, 4th ed. Matthew Holbeche Bloxam 1846

Although the remains of this style are for the most part plain and devoid of ornamental detail, we occasionally meet with mouldings of a semicylindrical or roll-like form, on the face or under the soffit of an arch, and these are sometimes continued down the sides of the jambs or piers.

The Principles of Gothic Ecclesiastical Architecture, Elucidated by Question and Answer, 4th ed. Matthew Holbeche Bloxam 1846