1. (

• interpolation ,
• insertion

) a message (spoken or written) that is introduced or inserted; "with the help of his friend's interpolations his story was eventually told"; "with many insertions in the margins" ;

2. (

• interpolation

) (mathematics) calculation of the value of a function between the values already known ;

3. (

• interjection ,
• interposition ,
• interpolation ,
• interpellation

) the action of interjecting or interposing an action or remark that interrupts ;