[f. SUBURB + -IA1.] A quasi-proper name for: The suburbs (esp. of London).
1896. Westm. Gaz., 20 April, 8/1. Suburbia also was very great in primroses and maiden-hair fern posies.
1907. H. Wyndham, Flare Footlights, xix. Adrian took a leisurely survey of the room and its occupants. Both reflected Suburbia very strongly.