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.
At the age of 62, one can retire with social security benefits within the US, and is considered to be the age of a senior citizen by many organizations.