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

• salivary glands
• salivas
• salivate
• salivated
• salivates
• salivating
• salivation
• salivations
• salix
• Salk vaccine
• sallad
• sallads
• sallal
• sallal berry
• sallals
• salle
• sallee
• sallee-man
• sallee-men
• sallee-rover
• sallees
• sallenders
• salles
• sallet
• sallets