Dictionary: OC'TAVE – OC'U-LAR

a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z |


OC'TAVE, a. [infra.]

Denoting eight. Dryden.

OC'TAVE, n. [Fr. from L. octavus, eighth.]

  1. The eighth day after a festival. Johnson.
  2. Eight days together after a festival. Ainsworth.
  3. In music, an eighth, or an interval of seven degrees or twelve semitones. The octave is the most perfect of the chords, consisting of six full tones and two semitones major. It contains the whole diatonic scale. Encyc.

OC-TA'VO, n. [L. octavus, eighth.]

A book in which a sheet is folded into eight leaves. The word is used as a noun or an adjective. We say, an octavo, or an octavo volume. The true phrase is, a book in octavo.

OC-TEN'NI-AL, a. [L. octo, eight, and annus, year.]

  1. Happening every eighth year.
  2. Lasting eight years.


Once in eight years.


The same as octant, supra.


The number produced by involving a million to the eighth power.

OC-TO'BER, n.1 [L. from octo, eight; the eighth month of the primitive Roman year which began in March.]

The tenth month of the year in our calendar, which follows that of Numa and Julius Caesar.

OC-TO'BER, n.2

A kind of ale, jocosely so called.

OC-TO-DEC'I-MAL, a. [L. octo, eight, and decem; ten.]

In crystalography, designating a crystal whose prisms, or the middle part, has eight faces, and the two summits together ten faces.

OC-TO-DEN'TATE, a. [L. octo, eight, and dentatus, toothed.]

Having eight teeth.

OC'TO-FID, a. [L. octo, eight, and findo, to cleave.]

In botany, cleft or separated into eight segments; as a calyx. Martyn.


  1. A person eighty years of age J. Adams.
  2. An instrument of eight strings.

OCTO-GE-NA-RY, a. [L. octogenarius, from octogeni, eighty.]

Of eighty years of age.

OC-TO-LOC'U-LAR, a. [L. octo, eight, and locus, place.]

In botany, having eight cells for seeds.

OC'TO-NA-RY, a. [L. octonarius.]

Belonging to the number eight.

OC-TO-NOC'U-LAR, a. [L. octo, eight, and oculus, eye.]

Having eight eyes. Derham.

OC-TO-PET'AL-OUS, a. [Gr. οκτω, eight, and πεταλον, a petal.]

Having eight petals or flower-leaves. Dict.

OC'TO-PODE, n. [Gr. οκτω, eight, and πους, foot.]

An animal having eight feet or legs. Kirby.

OC-TO-RA'DI-A-TED, a. [L. octo, eight, and radius, ray.]

Having eight rays.

OC-TO-SPERM'OUS, a. [Gr. οκτω, eight, and σπερμα, seed.]

Containing eight seeds.

OC'TO-STYLE, n. [Gr. οκτω, eight, and στυλος, style.]

In ancient architecture, the face of an edifice adorned with eight columns, or a range of eight columns. Encyc.

OC-TO-SYL'LA-BLE, a. [L. octo, eight, and syllaba, syllable.]

Consisting of eight syllables.

OC'TU-PLE, a. [L. octuplus; octo, eight, and plico, to fold.]

Eight-fold. Dict.

OC'U-LAR, a. [Fr. oculaire; L. ocularius, from oculus, eye.]

Depending on the eye; known by the eye; received by actual sight; as, ocular proof; ocular demonstration or evidence.