Activate and Operable

activate

Put in motion or move to act.
- usage: "trigger a reaction"; "actuate the circuits"
- synonyms: trip, actuate, trigger, set off, spark off, spark, trigger off, touch off
Make active or more active.
- usage: "activate an old file"
Make more adsorptive.
- usage: "activate a metal"
Aerate (sewage) so as to favor the growth of organisms that decompose organic matter.
- synonyms: aerate
Make (substances) radioactive. .

(v.t.) To make active.

Webster's Revised Unabridged Dictionary

operable

Capable of being treated by surgical operation.
- usage: "an operable cancer"
Fit or ready for use or service.
- usage: "the toaster was still functional even after being dropped"; "the lawnmower is a bit rusty but still usable"; "an operational aircraft"; "the dishwasher is now in working order"
- synonyms: functional, usable, useable, operational
Usable for a specific purpose.
- usage: "an operable plan"; "a practicable solution"
- synonyms: practicable

(a.) Practicable.

Webster's Revised Unabridged Dictionary