least common denominator n.
Abbr. lcd The least common multiple of the denominators of a set of fractions: The least common denominator of 1/3 and 1/4 is 12. Also called lowest common denominator.
The most basic, least sophisticated level of taste, sensibility, or opinion among a group of people.
The group having such taste, sensibility, or opinion: "The press can resist the standard of the lowest common denominator, the rationalization that all news is fit to print that has appeared anywhere else"(Edward M. Kennedy).
lowest common denominator (lō'ĭst) Pronunciation Key
The least common multiple of the denominators of a set of fractions. For example, the lowest common denominator of 1/3 and 3/4 is 12.
(lō'ĭst) Pronunciation Key