-ktə(r) noun
( -s )
Etymology: Late Latin, from Latin erectus + -or
: one that erects or supervises erection: as
a. : a muscle that raises or keeps a part erect — see erector pili
b.
(1) : a workman who works on a structure (as a steel building or bridge) by assembling fabricated parts ; specifically : shipfitter
(2) : a workman who assembles machines, tests the equipment in operation, and makes adjustments
(3) : a workman who assembles electrical equipment
c. : a machine for erecting (as a derrick)