13-letter words starting with oct
- octagon house — a type of American house, c. 1850, having an octagonal perimeter to reduce exterior wall area.
- octagon scale — a scale used in laying out octagonal figures of various sizes.
- octane number — (of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics.
- octane-rating — (of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics.
- octanoic acid — caprylic acid.
- octocentenary — pertaining to 800 or a period of 800 years; marking the completion of 800 years.
- octodecillion — a cardinal number represented in the U.S. by 1 followed by 57 zeros, and in Great Britain by 1 followed by 108 zeros.
- octogenarians — Plural form of octogenarian.
- octosyllables — Plural form of octosyllable.
- octyl alcohol — any of a group of isomers having the formula C 8 H 1 8 O, especially used in making perfumes and as a solvent.
On this page, we collect all 13-letter words starting with OCT. It’s easy to find right word with a certain length. It is the easiest way to find 13-letter word that beginning with OCT to use in Scrabble or Crossword puzzles.