Standard Lemma guide

rudderon

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˈɹʌdəɹˌɔn/
  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A type of control surface, usually found on flying wing aircraft, consisting of two pairs of panels (one mounted near each wingtip on the wing's trailing edge), with one lying on top of the other sandwich-style; to roll the aircraft, both panels on one wing deflect downwards (increasing the lift of that wing) and both panels on the othe wing deflect upwards (decreasing the lift of that wing), while, to yaw the aircraft, the panels on one wing split apart from each other (the upper panel deflects upwards, and the lower panel deflects downwards), increasing the drag on that wing.

Definition source: English Wiktionary via Wiktextract

Topics: aeronautics, aerospace, aviation, business, engineering, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *h1reh1- Proto-Indo-European *h1roh1-(ye-)-tider. Proto-Germanic *rōaną Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Germanic *-þrą Proto-Germanic *rōþrą Proto-West Germanic *rōþr Old English rōþor Middle English rother English rudder Proto-Indo-European *h2eǵ-? Proto-Indo-European *-os Proto-Indo-European *h2eḱs-der. Proto-Italic *aksis Latin axis Latin *axla Latin āla Old French aile Middle French aisle French aile French -er- Proto-Indo-European *-ōder. Proto-Indo-European *-Hōder.? Latin -ō Frankishinflu. Old French -on Middle French -on French -on French -eron French aileronbor. English aileron blend English rudderon Blend of rudder + aileron.