D defs.my
Entry 1 sense Webster, 1913

Integrator

/ĭn'-təg-rātˌ-ẽr/ · In·te·gra·tor · IPA /ˈɪntəɡrˌeɪtər/
01 n. That which integrates; esp., an instrument by means of which the area of a figure can be measured directly, or its moment of inertia, or st…
  1. 1.
    That which integrates; esp., an instrument by means of which the area of a figure can be measured directly, or its moment of inertia, or statical moment, etc., be determined.(Math. & Mech.)