operation
noun
[ ɒpəˈreɪʃ(ə)n ]
• the action of functioning or the fact of being active or in effect.
• "restrictions on the operation of market forces"
Similar:
functioning,
working,
running,
performance,
action,
behaviour,
effect,
force,
potency,
power,
effectiveness,
up and running,
operative,
in use,
in action,
going,
operational,
workable,
serviceable,
functional,
usable,
in working order/condition,
viable,
in force,
effective,
in effect,
valid,
• an act of surgery performed on a patient.
• "I've never felt better since my bypass operation"
Similar:
surgery,
surgical operation,
surgical intervention,
major surgery,
minor surgery,
• an organized activity involving a number of people.
• "a rescue operation"
Similar:
action,
activity,
exercise,
affair,
business,
undertaking,
step,
enterprise,
task,
job,
process,
procedure,
manoeuvre,
campaign,
• a process in which a number, quantity, expression, etc., is altered or manipulated according to set formal rules, such as those of addition, multiplication, and differentiation.
Origin:
late Middle English: via Old French from Latin operatio(n- ), from the verb operari ‘expend labour on’ (see operate).