callable

call +‎ -able

callable (not comparable)

1. (programming) That can be called.
   • 1989, Angel Alvarez, Ada: The Design Choice:

     The list of server tasks is a compromise between only one task for all remotely callable subprograms and one task for each remotely callable subprogram.

   • 2010, Trey Nash, Accelerated C# 2010, page xxvi:

     Historically, all viable frameworks have always provided a mechanism to implement callbacks. C# goes one step further and encapsulates callbacks into callable objects called delegates.

2. (finance) That may be redeemed by its holder before it matures.

• callable bond

callable (plural callables)

1. (programming) An object of a type that can be called, such as a function.
   • 2013, David Beazley, Brian K. Jones, Python Cookbook: Recipes for Mastering Python 3:

     The ctypes module can be used to create Python callables that wrap around arbitrary memory addresses.

2. (finance) A callable bond.