a larva of an insect with incomplete metamorphosis (as the dragonfly or mayfly)
(classical mythology) a minor nature goddess usually depicted as a beautiful maiden; "the ancient Greeks believed that nymphs inhabited forests and bodies of water"
(cryogenics) the lowest temperature theoretically attainable (at which the kinetic energy of atoms and molecules is minimal); 0 Kelvin or -273.15 centigrade or -459.67 Fahrenheit
the immature free-living form of most invertebrates and amphibians and fish which at hatching from the egg is fundamentally unlike its parent and must metamorphose