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Related to sinusoidal projection: Mollweide projection
sinusoidal projection[‚sī·nə′sȯid·əl prə′jek·shən]
An equal-area map projection in which the parallels are equally spaced, straight lines drawn to scale, the central meridian is a straight line perpendicular to the equator along which the scale is true, and the other meridians are sine curves, concaving toward the central meridian.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.