of or relating to practice or action: practical mathematics. consisting of, involving, or resulting from practice or action: a practical application of a rule. of, relating to, or concerned with ordinary activities, business, or work: a habitual dreamer, who can't be bothered with practical affairs.
With the oldest of the Baby Boomers turning 65 this year, the question of when one becomes a senior citizen is a topic of interest to a new generation.
In the United States, generally people qualify for full benefits from Social Security at the age of 65 and that is the reason many people consider 65 to be the real age of a senior citizen. However, the age of receiving full Social Security benefits is also a variable, based on your year of birth.