美 
											[ˌderɪ'veɪʃn]
																
										
							
																																	"he prefers shoes of Italian derivation"
																							"music of Turkish derivation"
																															
																																	"`singer' from `sing' or `undo' from `do' are examples of derivations"
																															
Plenty of Vessels for the derivation of Air to all their Parts.
出自: J. Ray