Definition of "time period" []

• An amount of time (noun)

WordNet. Princeton University. 2010.

• "The intellectual tradition of “early sociology” traces its ancestry to the French sociologist Gabriel Tarde, but most of the research publications in this tradition appeared from the late 1920s to the early 1940s at approximately the same time period that the anthropology diffusion was getting under way."
• "Pregnancy is divided into 3 time periods called trimesters with each time period lasting about 3 months."
• "I wanted that time period over before Velosovitch even knew it was happening."