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# spiral surface

superficie espiral

English-Spanish mathematics dictionary. . 1964.

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• Spiral axis — Axis Ax is, n.; pl. {Axes}. [L. axis axis, axle. See {Axle}.] A straight line, real or imaginary, passing through a body, on which it revolves, or may be supposed to revolve; a line passing through a body or system around which the parts are… …   The Collaborative International Dictionary of English

• surface — The outer part of any solid. SYN: face (2) [TA], facies (2) [TA]. [F. fr. L. superficius, see superficial] acromial articular s. of clavicle SYN: acromial facet of clavicle. anterior s. [TA] the s. of a …   Medical dictionary

• spiral valve — a spiral or helical fold in the midgut of Petromyzontiformes, Elasmobranchii, Holocephali and some primitive Teleostomi. Functions to increase the surface area for processing food without lengthening the intestine …   Dictionary of ichthyology