An expression in the usage of a language that is peculiar to itself either in having a meaning that cannot be derived from the conjoined meanings of its elements or in its grammatically atypical use of words.
Idiom:
round-robin meeting/discussion/debate
Meaning:
a meeting or discussion in which each person in a group takes part
Example:
We had a round-robin panel discussion on what we could do to help protect the environment.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is a type of phrase or expression that has a meaning that can't be deciphered by defining the individual words.