⍹ — Right operand

Argument. Keys: Alt-Minus w

⍹ is the right operand of a defined operator. An operator that uses ⍹ is dyadic.

op←{⍶+⍹×⍵} ⋄ (2 op 3)4 ⍝ 14

Operands can be subjects or functions. The arguments are still ⍺ and ⍵.