| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| Morley (môr'lē) Pronunciation Key
American chemist and physicist who with Albert Michelson disproved the existence of ether, the hypothetical medium of electromagnetic waves. Their work served as the starting point for Albert Einstein's development of the theory of relativity. |