acescence /ə-sesˈəns/ or acescency /-ən-si/

1. Souring
2. Turning (of milk)

• steaming lights
• steamings
• steam iron
• steam irons
• steam jacket
• steam jackets
• steam launch
• steam launches
• steam locomotive
• steam locomotives
• steam navvies
• steam navvy
• steam open
• steam organ
• steam organs
• steam packet
• steam packets
• steam port
• steam ports
• steam power
• steampunk
• steam radio
• steam-roller
• steam-rollered
• steam-rollering