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Webster 1913 Edition

Noun.

One who deals in oils.

One who, or that which, oils.

Noun.

One who deals in oils and pickles.

oiler ‎(plural oilers)

(nautical) An oil tanker
An oil well
A junior role in the engine room of a ship, senior only to a wiper, consisting mainly of keeping machinery lubricated.
(firearms) A small (typically thumb-sized) metal container of oil, often containing an integral brush.

ship — see oil tanker

oil well — see oil well

ship operative