MapApply

f @@@ expr or MapApply[f, expr] replaces heads at level 1 of expr by f.

MapApply[f] represents an operator form of MapApply that can be applied to an expression.

Examples

Apply to sublists:

MapApply[f, {{a, b}, {c, d}}]
(* {f[a, b], f[c, d]} *)

Using shorthand:

Plus @@@ {{1, 2}, {3, 4, 5}}
(* {3, 12} *)

Please visit the official Wolfram Language Reference for more details.