1. By an institution
   "institutionally controlled"

See also: institutional

• air group
• air guitar
• air hammer
• air hole
• air horn
• air hose
• air hostess
• air jacket
• air lane
• air letter
• air marshal
• air mass
• air mattress
• Air Medal
• air mile
• Air National Guard
• air out
• air passage
• air plant
• air pocket
• air pollution
• air potato
• air power
• air pressure
• air pump