Definition of infields:
(n) :
(baseball) The region of the field roughly bounded by the home plate, first base, second base and third base.
(n) :
(cricket) The region of the field roughly bounded by the wicket keeper, slips, gully, point, cover, mid off, mid on, midwicket and square leg.
(n) :
(baseball) (as a modifier, functioning as an adjective) Of an event, happening in the infield.
(n) :
(agriculture) An area to cultivate: a field
(n) :
The area inside a racetrack or running track.
(n) :
A constrained scope or area.