pre·lu·sion 
(prĭ-lzhən)
(prĭ-lzhən)n.
A prelude or introduction.
[Latin praelūsiō, praelūsiōn-, from praelūsus, past participle of praelūdere, to play beforehand; see PRELUDE.]
pre·lusive (-sĭv) adj.
pre·lusive·ly adv.
- heterophonic
- heterophony
- heterophyllous
- heterophylly
- heteroplastic
- heteroplasty
- heteroploid
- heteroploidy
- heteropteran
- heteropterous
- heterosexism
- heterosexist
- heterosexual
- heterosexuality
- heterosis
- heterosporous
- heterospory
- heterostyled
- heterostylous
- heterostyly
- heterotaxia
- heterotaxic
- heterotaxy
- heterothallic
- heterothallism