PSEUDOSPHERE
Pseu"do*sphere`, n. Etym: [Pseudo- + sphere.] (Geom.)
Definition: The surface of constant negative curvature generated by the revolution of a tractrix. This surface corresponds in non-Euclidian space to the sphere in ordinary space. An important property of the surface is that any figure drawn upon it can be displaced in any way without tearing it or altering in size any of its elements.
Source: Webster’s Unabridged Dictionary 1913 Edition
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13 January 2025
SOAK
(noun) the process of becoming softened and saturated as a consequence of being immersed in water (or other liquid); “a good soak put life back in the wagon”
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