Oleo
noun
noun ·3 syllables ·Uncommon ·Advanced level
Definitions
Noun
- 1 A type of energy-absorbing landing gear strut in which sudden compression or extension of the strut causes a gas-filled chamber to push or pull a piston which forces oil through a small orifice, resulting in absorption of energy through viscous effects.
"If the oil leaks out of the oleos, they won't be able to cushion the aircraft against a hard landing."
- 2 The various fats and oils that go into the making of margarine. US, uncountable, usually
- 3 Margarine. US, dated, uncountable, usually
- 4 a spread made chiefly from vegetable oils and used as a substitute for butter wordnet
Example
More examples"If the oil leaks out of the oleos, they won't be able to cushion the aircraft against a hard landing."
Etymology
Etymology 1
Ellipsis of oleo strut.
Etymology 2
From oleum (“olive oil”).
Etymology 3
Clipping of oleomargarine.
Related phrases
More for "oleo"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.