Webster's Dictionary 1913

433

Octandrian

{ Oc‐tan″dri‐an (?), Oc‐tan″drous (?), } a.(Bot.) Of or pertaining to the Octandria; having eight distinct stamens.

434

Octane

Oc″tane (ŏk″tān), n. [See Octa-] (Chem.) Any one of a group of metametric hydrocarbons (C8H18) of the methane series. The most important is a colorless, volatile, inflammable li...

435

Octangular

Oc‐tan″gu‐lar (?), a. [L. octangulus eight-cornered; octo eight + angulus angle.] Having eight angles; eight-angled. — Oc‐tan″gu‐lar‐ness, n.

436

Octant

Oc″tant (?), n. [L. octans, -antis. fr. octo eight. See Octave.] 1. (Geom.) The eighth part of a circle; an arc of 45 degrees.2. (Astron. & Astrol.) The position or aspect of a ...

437

Octapla

‖Oc″ta‐pla (?), n.; etymol. pl., but syntactically sing. [NL., fr. Gr. οκτἀ- (for οκτὤ eight) + -pla, as in E. hexapla; cf. Gr. � eightfold.] A portion of the Old Testament prep...

438

Octaroon

Oc′ta‐roon″ (?), n. See Octoroon.

439

Octastyle

Oc″ta‐style (?), a. See Octostyle.

440

Octateuch

Oc″ta‐teuch (?), n. [L. octateuchus, Gr. �.] A collection of eight books; especially, the first eight books of the Old Testament.

441

Octavalent

Oc‐tav″a‐lent (?), a. [Octa- + L. valens, p. pr. See Valence.] (Chem.) Having a valence of eight; capable of being combined with, exchanged for, or compared with, eight atoms of...

442

Octave

Oc″tave (?), n. [F., fr. L. octava an eighth, fr. octavus eighth, fr. octo eight. See Eight, and cf. Octavo, Utas.] 1. The eighth day after a church festival, the festival day b...

443

Octave (2)

Oc″tave (?), a. Consisting of eight; eight. Dryden.

444

Octavo

Oc‐ta″vo (?), n.;pl.Octavos (#). [L. in octavo; in in + octavo, abl. of octavus. See Octave.] A book composed of sheets each of which is folded into eight leaves; hence, indicat...

445

Octavo (2)

Oc‐ta″vo, a. Having eight leaves to a sheet; as, an octavo form, book, leaf, size, etc.

446

Octene

Oc″tene (?), n. [See Octo-.] (Chem.) Same as Octylene.

447

Octennial

Oc‐ten″ni‐al (?), a. [L. octennium a period of eight years; octo eight + annus year.] Happening every eighth year; also, lasting a period of eight years. Johnson. — Oc‐ten″ni‐al...

448

Octet

Oc‐tet″ (?), n. [From L. octo eight, like E. duet, fr.L. duo. See Octave.] (Mus.) A composition for eight parts, usually for eight solo instruments or voices.

449

Octic

Oc″tic (?), a. [Octo- + -ic.] (Math.) Of the eighth degree or order. — n.(Alg.) A quantic of the eighth degree.

450

Octile

Oc″tile (?), n. [Cf. F. octil, a. See Octant.] Same as Octant, 2.

451

Octillion

Oc‐til″lion (?), n. [L. octo eight + -illion, as in E. million: cf. F. octillion.] According to the French method of numeration (which method is followed also in the United Stat...

452

Octo-

{ Oc″to– (?), Oc″ta– (?) }. [L. octo eight, Gr. �, with a combining form �. Cf. Eight.] A combining form meaning eight; as in octodecimal, octolocular.

453

Octoate

Oc″to‐ate (?), n.(Chem.) A salt of an octoic acid; a caprylate.

454

October

Oc‐to″ber (?), n. [L., the eighth month of the primitive Roman year, which began in March, fr. octo eight: cf. F. Octobre. See Octave.] 1. The tenth month of the year, containin...

455

Octocera

‖Oc‐toc″e‐ra (?), n. pl. Octocerata.

456

Octocerata

‖Oc′to‐cer″a‐ta (?), n. pl. [NL., fr. Gr. οκτὤ eight + �, a horn.] (Zoöl.) A suborder of Cephalopoda including Octopus, Argonauta, and allied genera, having eight arms around th...

457

Octochord

Oc″to‐chord (?), n.(Mus.) See Octachord.

458

Octodecimo

Oc′todec″i‐mo (?), a. [L. octodecim eighteen. See Octavo, Decimal, and -mo.] Having eighteen leaves to a sheet; as, an octodecimo form, book, leaf, size, etc.

459

Octodecimo (2)

Oc′to‐dec″i‐mo, n.; pl.Octodecimos (�). A book composed of sheets each of which is folded into eighteen leaves; hence; indicating more or less definitely a size of book, whose s...