Chapter Ordinand to Organism of O by Webster's Dictionary (1913 Edition)

Ordnance
(Ord"nance) n. [From OE. ordenance, referring orig. to the bore or size of the cannon. See Ordinance.] Heavy weapons of warfare; cannon, or great guns, mortars, and howitzers; artillery; sometimes, a general term for all weapons and appliances used in war.

All the battlements their ordnance fire.

Shak.

Then you may hear afar off the awful roar of his [Rufus Choate's] rifled ordnance.

E. Ererett.

Ordnance survey, the official survey of Great Britain and Ireland, conducted by the ordnance department.

Ordonnance
(Or"don*nance) n. [F. See Ordinance.] (Fine Arts) The disposition of the parts of any composition with regard to one another and the whole.

Their dramatic ordonnance of the parts.

Coleridge.

Ordonnant
(Or"don*nant) a. [F., p. pr. of ordonner. See Ordinant.] Of or pertaining to ordonnance. Dryden.

Ordovian
(Or*do"vi*an) a. & n. (Geol.) Ordovician.

Ordovician
(Or`do*vi"cian) a. [From L. Ordovices, a Celtic people in Wales.] (Geol.) Of or pertaining to a division of the Silurian formation, corresponding in general to the Lower Silurian of most authors, exclusive of the Cambrian. — n. The Ordovician formation.

Ordure
(Or"dure) n. [F. ordure, OF. ord filthy, foul, fr. L. horridus horrid. See Horrid.]

1. Dung; excrement; fæces. Shak.

2. Defect; imperfection; fault. [Obs.] Holland.

Ordurous
(Or"dur*ous) a. Of or pertaining to ordure; filthy. Drayton.

Ore
(Ore) n. [AS. ar.] Honor; grace; favor; mercy; clemency; happy augry. [Obs.] Chaucer.

Ore
(Ore), n. [AS. ara; cf. ar brass, bronze, akin to OHG. er, G. ehern brazen, Icel. eir brass, Goth. ais, L. aes, Skr. ayas iron. &radic210. Cf. Ora, Era.]

1. The native form of a metal, whether free and uncombined, as gold, copper, etc., or combined, as iron, lead, etc. Usually the ores contain the metals combined with oxygen, sulphur, arsenic, etc.

2. (Mining) A native metal or its compound with the rock in which it occurs, after it has been picked over to throw out what is worthless.

3. Metal; as, the liquid ore. [R.] Milton.

Ore hearth, a low furnace in which rich lead ore is reduced; — also called Scotch hearth. Raymond.

Oread
(O"re*ad) n. [L. Oreas, - adis, Gr. 'Oreia`s, -a`dos, fr. 'o`ros mountain: cf. F. oréade.] (Class. Myth.) One of the nymphs of mountains and grottoes.

Like a wood nymph light,
Oread or Dryad.

Milton.

Oreades
(||O*re"a*des) n. pl. [NL.] (Zoöl.) A group of butterflies which includes the satyrs. See Satyr, 2.

Orectic
(O*rec"tic) a. [Gr. 'orektiko`s, fr. 'o`rexis, yearning after, from 'ore`gein to reach after.] (Philos.) Of or pertaining to the desires; hence, impelling to gratification; appetitive.