prismatical

Hemispherical specimens have been found on the inner surface of a shell which has no living representative — viz., the Inoceramus (some of which attained a length of two feet) — and spherical ones of the same prismatical structure occur detached in the chalk.

Tropic Days 2003

What Monet did was to encourage a new type of audacity and a brand-new type in truth, when no one had up to then attempted to see nature as prismatical under the direct influence of the solar rays.

Adventures in the Arts Informal Chapters on Painters, Vaudeville, and Poets Marsden Hartley

On a bright polish'd throne, of prismatical [47] spar,

Translations of German Poetry in American Magazines 1741-1810 Edward Ziegler Davis 1901

Hemispherical specimens have been found on the inner surface of a shell which has no living representative -- viz., the Inoceramus (some of which attained a length of two feet) -- and spherical ones of the same prismatical structure occur detached in the chalk.

Tropic Days 1887

This siliceous substance, viewed in one direction, or longitudinally, may be considered as columnar, prismatical, or continued in lines running nearly parallel.

Theory of the Earth~ Part 2 (historical) 1788

I observ'd likewise, that the shootings of _Ice_ on the top of Water, beginning to freez, were in streight _prismatical_ bodies much like those of _roch-peter_, that they crost each other usually without any kind of order or rule, that they were always a little higher then the surface of the Water that lay between them; that by degrees those _interjacent_ spaces would be fill'd with _Ice_ also, which usually would be as high as the surface of the rest.

Micrographia Some Physiological Descriptions of Minute Bodies Made by Magnifying Glasses with Observations and Inquiries Thereupon Robert Hooke 1669