Definition of "emulation"

emulation

/ˌɛm.jʊˈleɪ̯.ʃən/

noun
countable and uncountable, plural emulations
1. The endeavor or desire to equal or excel someone else in qualities or actions.
  Quotations
  Allur'd, not forc'd, encourag'd, not compell'd;The shrinking eye look'd up, the soul was cheer'd,Felt as it learnt, confided e'er it fear'd;And first by emulation's ardour mov'd,Prest onward in the path which soon it lov'd.
  1827, Lydia Sigourney, Poems, Tribute to an Instructor, page 210
2. (obsolete) Jealous rivalry; envy; envious contention.
  Quotations
  Scarce two gentlemen dwell together in the country […] , but there is emulation betwixt them and their servants, some quarrel or some grudge betwixt their wives or children […]
  1624, Democritus Junior [pseudonym; Robert Burton], The Anatomy of Melancholy: […], 2nd edition, Oxford, Oxfordshire: Printed by John Lichfield and James Short, for Henry Cripps
3. (computing) Execution of a program or other software designed for a different system, by simulating parts of the other system.