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List of 9-letter words containing

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There are 11 nine-letter words containing OCTA

ISOOCTANE• isooctane n. (Organic chemistry) any isomer of n-octane; especially 2,2,4-trimethylpentane, used as a reference in…
• iso-octane n. (Chemistry) Any isomer of octane except the normal, straight-chain one; especially 2,2,4-trimethylpentane.
• ISOOCTANE n. a fuel of the same octane rating.
OCTACHORD• octachord n. A musical instrument with eight strings.
• octachord n. A musical system of eight tones.
• OCTACHORD n. an instrument of eight strings; a system of eight tones.
OCTAGONAL• octagonal adj. (Geometry) Shaped like an octagon, in having eight sides and eight angles.
• OCTAGONAL adj. having eight sides and eight angles.
OCTAHEDRA• octahedra n. Plural of octahedron.
• OCTAHEDRON n. (Greek) a solid bounded by eight plane faces, also OCTOHEDRON.
OCTAMETER• octameter n. A line of verse containing eight metrical feet.
• OCTAMETER n. a verse-line of eight feet.
OCTANGLES• octangles n. Plural of octangle.
• OCTANGLE n. an octagon.
OCTAPLOID• octaploid adj. Alternative form of octoploid.
• octaploid n. Alternative form of octoploid.
• OCTAPLOID adj. eightfold.
OCTAPODIC• OCTAPODIC adj. of a verse line, having eight feet.
OCTASTICH• octastich n. A poem or strophe of eight verses or lines.
• OCTASTICH n. a poem or stanza of eight lines, also OCTASTICHON.
OCTASTYLE• octastyle adj. (Architecture) Having eight columns in the front row (Of a portico etc.).
• octastyle n. A portico with eight columns.
• OCTASTYLE adj. having eight columns at the end.
SUBOCTAVE• suboctave n. (Music) The octave below another.
• suboctave n. (Obsolete) An eighth part.
• suboctave adj. (Obsolete) In the proportion of 1 to 8.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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