plural of rhythm method

A four-wheeled pedal cycle. / A four-wheeled motorcycle, often resembling a small car (microcar).

Capable of stretching; particularly, capable of stretching so as to return to an original shape or size when force is released. / Made of elastic. / Of clothing, elasticated.

(organic chemistry) The sesquiterpene (1R,6S)-2,6,8,8-tetramethyltricyclo[5.2.2.0^1,6]undec-2-ene