Chapter Octopus to Odontoid of O by Webster's Dictionary (1913 Edition)

Octopus to Odontoid

Octopus
(Oc"to*pus) n. [NL. See Octopod.] (Zoöl.) A genus of eight-armed cephalopods, including numerous species, some of them of large size. See Devilfish,

Octoradiated
(Oc`to*ra"*di*a`ted) a. [Octo- + radiated.] Having eight rays.

Octoroon
(Oc`to*roon") n. [L. octo eight + -roon, as in quadroon.] The offspring of a quadroon and a white person; a mestee.

Octospermous
(Oc`to*sper"mous) a. [Octo- + Cr. seed.] (Bot.) Containing eight seeds.

Octostichous
(Oc*tos"ti*chous) a. [Octo- + Gr. a row.] (Bot.) In eight vertical ranks, as leaves on a stem.

Octostyle
(Oc"to*style) a. [Octo- + Gr. a pillar: cf.F. octostyle.] (Arch.) Having eight columns in the front; — said of a temple or portico. The Parthenon is octostyle, but most large Greek temples are hexastele. See Hexastyle. — n. An octostyle portico or temple.

Octosyllabic
(Oc`to*syl*lab"ic Oc`to*syl*lab"ic*al) a. [L. octosyllabus. See Octo-, and Syllable.] Consisting of or containing eight syllables.

Octosyllable
(Oc"to*syl`la*ble) a. Octosyllabic.

Octosyllable
(Oc"to*syl`la*ble), n. A word of eight syllables.

Octoyl
(Oc"to*yl) n. [Octoic + -yl.] (Chem.) A hypothetical radical regarded as the essential residue of octoic acid.

Octroi
(||Oc`troi") n. [F.]

1. A privilege granted by the sovereign authority, as the exclusive right of trade granted to a guild or society; a concession.

2. A tax levied in money or kind at the gate of a French city on articles brought within the walls.

[Written also octroy.]

Octuor
(Oc"tu*or) n. [From L. octo eight + -uor, as in L. quatuor.] (Mus.) See Octet. [R.]

Octuple
(Oc"tu*ple) a. [L. octuplus; cf. Gr. : cf.F. octuple.] Eightfold.

Octyl
(Oc"tyl) n. [Octane + - yl.] (Chem.) A hypothetical hydrocarbon radical regarded as an essential residue of octane, and as entering into its derivatives; as, octyl alcohol.

Octylene
(Oc"tyl*ene) n. [Octane + ethylene.] (Chem.) Any one of a series of metameric hydrocarbons (C₈H₁₆) of the ethylene series. In general they are combustible, colorless liquids.

Octylic
(Oc*tyl"ic) a. (Chem.) Pertaining to, derived from, or containing, octyl; as, octylic ether.

Ocular
(Oc"u*lar) a. [L. ocularis, ocularius, fr. oculus the eye: cf.F. oculaire. See Eye, and cf. Antler, Inveigle.]

1. Depending on, or perceived by, the eye; received by actual sight; personally seeing or having seen; as, ocular proof. Shak.

Thomas was an ocular witness of Christ's death.

South.

2. (Anat.) Of or pertaining to the eye; optic.