Ra·vel 
(rə-vĕl, rä-), (Joseph) Maurice 1875-1937.
(rə-vĕl, rä-), (Joseph) Maurice 1875-1937. French composer of impressionistic operas, ballets, orchestral works, such as Boléro (1928), and piano works, including Le Tombeau de Couperin (1917).
- proto-oncogene
- protopathic
- protopathy
- protoplanet
- protoplanetary disk
- protoplasm
- protoplasmal
- protoplasmatic
- protoplasmic
- protoplast
- protoplastic
- protoporphyrin
- protostar
- protostele
- protostelic
- protostome
- prototroph
- prototrophic
- prototrophy
- prototypal
- prototype
- prototypic
- prototypical
- protozoal
- protozoan