| 单词 |
pelecoid |
| 释义 |
pelecoid, a. and n. Geom.|ˈpɛlɪkɔɪd| Also 9 erron. peli-. [ad. Gr. πελεκοειδής, f. πέλεκυς axe, hatchet + -ειδης -form, -shaped.] a. adj. Hatchet-shaped. b. n. A figure bounded by a semicircle, and two concave quadrants meeting in a point, and so resembling the blade of a battle-axe.
[1706Phillips, Pelecoides, a Name which some give to a certain Geometrical Figure, that somewhat resembles a Hatchet.] 1727–41Chambers Cycl. s.v. Angle, Pelecoid Angle..is that in figure of a hatchet. 1864Webster, Pelicoid. See Pelecoid. |
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