Noah Webster's 1828 American Dictionary of the English Language is regarded by many as the finest English
dictionary ever published. The dictionary is available in many forms. I made the content available here for my own purposes,
out of personal admiration for this particular dictionary.
EXTEM'PORE, adv. extem'pory. [L. abl.] 1. Without previous study or meditation; without preparation; suddenly; as, to write or speak extempore. 2. It is used as an adjective, improperly, at least without necessity; as an extempore dissertation.