|1.||the act of joining, esp in legal contexts|
|a. (in pleading) the stage at which the parties join issue (joinder of issue)|
|b. the joining of two or more persons as coplaintiffs or codefendants (joinder of parties)|
|c. the joining of two or more causes in one suit|
|[C17: from French joindre to |
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a scrap or morsel of food left at a meal.|
in law, processes whereby additional parties or additional claims are brought into suits because addressing them is necessary or desirable for the successful adjudication of the issues.
Learn more about joinder with a free trial on Britannica.com.