/ ɪnˈtɜːpəleɪt; NAmE -ˈtɜːrp-/ verb ( formal )
1.
to make a remark that interrupts a conversation
SYN interject :
[ v speech ]
'But why?' he interpolated.
[also vn ]
2.
[ vn ] interpolate sth (into sth) to add sth to a piece of writing
SYN insert :
The lines were interpolated into the manuscript at a later date.
3.
[ vn ] ( mathematics ) to add a value into a series by calculating it from surrounding known values
► in·ter·pol·ation / ɪnˌtɜːpəˈleɪʃn; NAmE -ˌtɜːrp-/ noun [ U , C ]
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WORD ORIGIN
early 17th cent.: from Latin interpolat- refurbished, altered, from the verb interpolare , from inter- between + -polare (related to polire to polish).