prolusion /prə-, prō-looˈzhən or -lūˈ/

1. A preliminary performance, activity or display
2. An essay preparatory to a more solid treatise

proluˈsory /-sə-ri/ adjective

• omitters
• omitting
• omlah
• omlahs
• ommatea
• ommateum
• ommatidia
• ommatidium
• ommatophore
• ommatophores
• omneities
• omneity
• omni-
• omniana
• omnibenevolence
• omnibenevolent
• omnibus
• omnibus book
• omnibus books
• omnibus box
• omnibus boxes
• omnibus clause
• omnibus clauses
• omnibus edition
• omnibus editions