periplast /perˈi-pläst/ (zoology)

1. Intercellular substance
2. The ectoplasm of flagellates
3. A cuticle covering the ectoplasm

• happening
• happenings
• happen into
• happens
• happenstance
• happenstances
• happied
• happier
• happies
• happiest
• happily
• happiness
• happinesses
• happing
• happy
• happy as Larry
• happy-clappy
• happy dispatch
• happy dispatches
• happy event
• happy events
• happy families
• happy-go-lucky
• happy hour
• happy hours