infrastructure /inˈfrə-struk-chər/

1. Inner structure, structure of component parts
2. A system of communications and services as backing for military, commercial, etc operations

infrastrucˈtural adjective

• whirlingly
• whirling-machine
• whirlings
• whirling-table
• whirling-tables
• whirlpool
• whirlpool bath
• whirlpools
• whirls
• whirlwind
• whirlwinds
• whirly
• whirlybird
• whirlybirds
• whirr
• whirred
• whirret
• whirreted
• whirreting
• whirrets
• whirried
• whirries
• whirring
• whirrings
• whirrs