involute /inˈvl-loot or -lūt/

1. Involved
2. Rolled inward at the margins (botany)
3. Turned inward
4. Closely rolled
5. (of gear teeth) having the profile of an involute curve

1. That which is involved or rolled inward
2. A curve traced by the end of a string unwinding itself from another curve (the evolute)

To make or become involute

inˈvoluted adjective

• postal note
• postal notes
• postal order
• postal orders
• postals
• postal tube
• postal tubes
• postal union
• postal unions
• postal vote
• postal votes
• post and pair
• postbag
• postbags
• post-bellum
• postbox
• postboxes
• post boy
• post boys
• postbus
• postbuses
• rearguard
• rearguards
• rearhorse
• rearhorses