...Shell cylindrical, polished, spire conic acuminated, very short; outer lip simple, inner lip thickened, tumid, columella with numerous slender plaits, aperture at the base truncatedly emarginate... 
William Swainson 「Zoological Illustrations, Volume I」
...Shell obovate; spire conic, of five convex volutions; suture simple; umbilicus open...
William Swainson 「Zoological Illustrations, Volume I」
...Obconic: conic, with the apex pointing downward...
John. B. Smith 「Explanation of Terms Used in Entomology」
...Theparticular form of conic section which denotes the orbit of a planet isknown by the name of the ellipse: it is spoken of somewhat lessaccurately as an oval...
Robert Stawell Ball 「The Story of the Heavens」
... The circle and straight line are considered to be special cases ofthese curves, which, taken collectively, are called the conic sections...
George C. Comstock 「A Text-Book of Astronomy」
...The fact that the force varies as the inverse square of the distance,necessitates motion in an ellipse, or some other conic section, with thesun in one focus...
Oliver Lodge 「Pioneers of Science」
...Icalled it Seymour's Range, and a conic hill at its western end MountOrmerod...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
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