Definition of "elastica" [elastica]

• The elastic (middle) layer of the walls of the arteries: an abbreviation of tunica elastica (which see, with cut). (noun)
• In physics, a curve such that the reciprocal of the radius of curvature at any point is proportional to the distance of the point from a straight line. Also called elastic curve. (noun)

The Century Dictionary (Public Domain)

• "The basic ingredient is the sap or latex of the native Panama Rubber Tree (Castilla elastica)."
• "Well, perhaps not as surprising as you may think, since any good tropical botanist will tell you that the two plants, Castilla elastica and Ipomoea alba are often found in close proximity."
• "Switch your skinny-down program to easy-on elastica."