Definition of explementary in English:

explementary

adjective

Mathematics
rare
  • Of an angle or arc: that is an explement of a given angle or arc. Also of two or more angles or arcs: that are explements of one another.

Origin

Mid 19th century. From explement + -ary.

Pronunciation

explementary

/ɛksplɪˈmɛnt(ə)ri/