General English

General Science

  • adjective describes either of two angles that together make a right angle
  • adjective describes the elements of a mathematical set that are not included in a particular subset of that set


  • adjective the fact of fitting in with and improving the performance of something


  • Compensating for mutual deficiencies.
  • In semiconductors, having components of opposite polarities working together. For instance, incorporating pnp and npn transistors on the same substrate.


  • adjective which adds to or completes something else

Media Studies

  • noun referring to colours which are ‘opposite’ and produce a shade of grey when mixed, such as green and orange or blue and yellow


  • adjective used in or using complementary medicine
  • adjective referring to genes which are necessary to each other and produce their effect only when they are present together