Wordnet 3.0
NOUN (2)
1.
(physics) an abrupt transition of an electron or atom or molecule from one quantum state to another with the emission or absorption of a quantum;
2.
a sudden large increase or advance;
- Example: "this may not insure success but it will represent a quantum leap from last summer"[syn: quantum leap, quantum jump]
WordNet (r) 3.0 (2006):
quantum jump
n 1: (physics) an abrupt transition of an electron or atom or
molecule from one quantum state to another with the
emission or absorption of a quantum
2: a sudden large increase or advance; "this may not insure
success but it will represent a quantum leap from last
summer" [syn: quantum leap, quantum jump]