Loading earlier words…
Orbitolites

A genus of living Foraminifera, forming broad, thin, circular disks, containing numerous small chambers.

Orbitonasal

Of or pertaining to the orbit and the nose; as, the orbitonasal, or ophthalmic, nerve.

Orbitosphenoid

Of or pertaining to the sphenoid bone and the orbit, or to the orbitosphenoid bone. The orbitosphenoid bone, which is situated in the orbit on either side of the presphenoid. It generally forms a part of the sphenoid in the adult.

Orbulina

A genus of minute living Foraminifera having a globular shell.

Orby

Orblike; having the course of an orb; revolving.

orc

Any of several cetaceans, especialy the grampus (Grampus griseus) of the dolphin family.

Orca

The killer whale (Orcinus orca).

Orcadian

Of or pertaining to the Orkney Islands.

Orcein

A reddish brown amorphous dyestuff, C7H7NO3, obtained from orcin, and forming the essential coloring matter of cudbear and archil. It is closely related to litmus.

Orchestian

Any species of amphipod crustacean of the genus Orchestia, or family Orchestidae. See Beach flea, under Beach.

Orchestra

The space in a theater between the stage and the audience; -- originally appropriated by the Greeks to the chorus and its evolutions, afterward by the Romans to persons of distinction, and by the moderns to a band of instrumental musicians. Now commonly called orchestra pit, to distinguish it from the section of the main floor occupied by spectators.

Orchestral

Of or pertaining to an orchestra; suitable for, or performed in or by, an orchestra.

orchestrate

to write an orchestra score for; -- of a musical composition.

orchestrated

Arranged for performance by an orchestra; -- of a musical composition.

Orchestration

The arrangement of music for an orchestra; orchestral treatment of a composition; -- called also instrumentation.

Orchestrion

A large music box imitating a variety of orchestral instruments.

Orchid

Any plant of the order Orchidaceae. See Orchidaceous.

Orchidaceous

Pertaining to, or resembling, a natural order (Orchidaceae) of endogenous plants of which the genus Orchis is the type. They are mostly perennial herbs having the stamens and pistils united in a single column, and normally three petals and three sepals, all adherent to the ovary. The flowers are curiously shaped, often resembling insects, the odd or lower petal (called the lip) being unlike the others, and sometimes of a strange and unexpected appearance. About one hundred species occur in the United States, but several thousand in the tropics.

Orchidales

An order of plants with irregular flowers having minute seeds, and including the families Orchidaceae and Burmanniaceae.

Orchidology

The branch of botany which treats of orchids.

Orchotomy

The operation of cutting out or removing a testicle by the knife; castration.

Orcin

A colorless crystalline substance, C6H3.CH3.(OH)2, which is obtained from certain lichens (Roccella, Lecanora, etc.), also from extract of aloes, and artificially from certain derivatives of toluene. It changes readily into orcein.

Orcus

The god of the underworld; counterpart of Greek Pluto.

Ord

An edge or point; also, a beginning.

Ordain

To set in order; to arrange according to rule; to regulate; to set; to establish.

Ordainable

Capable of being ordained; worthy to be ordained or appointed.

Ordalian

Of or pertaining to trial by ordeal.

Ordeal

Of or pertaining to trial by ordeal.

Order

To give orders; to issue commands.

Orderable

Capable of being ordered; tractable.

ordered

having or evincing a systematic arrangement; especially, having elements succeeding in order according to rule; as, an ordered sequence; an ordered pair. Opposite of disordered or unordered.

Orderer

One who puts in order, arranges, methodizes, or regulates.

Ordering

Disposition; distribution; management.

Orderless

Being without order or regularity; disorderly; out of rule.

Orderly

A noncommissioned officer or soldier who attends a superior officer to carry his orders, or to render other service.

Ordinable

Capable of being ordained or appointed.

Ordinal

A word or number denoting order or succession.

Ordinarily

According to established rules or settled method; as a rule; commonly; usually; in most cases; as, a winter more than ordinarily severe.

Ordinary

An officer who has original jurisdiction in his own right, and not by deputation. One who has immediate jurisdiction in matters ecclesiastical; an ecclesiastical judge; also, a deputy of the bishop, or a clergyman appointed to perform divine service for condemned criminals and assist in preparing them for death. A judicial officer, having generally the powers of a judge of probate or a surrogate.

Ordinate

To appoint, to regulate; to harmonize.

Ordination

The act of ordaining, appointing, or setting apart; the state of being ordained, appointed, etc.

Ordinative

Tending to ordain; directing; giving order.

Ordinator

One who ordains or establishes; a director.

Ordnance

Heavy weapons of warfare; cannon, or great guns, mortars, and howitzers; artillery; sometimes, a general term for all weapons, ammunitiion, and appliances used in war.

Ordonnance

The disposition of the parts of any composition with regard to one another and the whole.

Ordovician

Of or pertaining to a division of the Silurian formation, corresponding in general to the Lower Silurian of most authors, exclusive of the Cambrian. The Ordovician formation.

Ordurous

Of or pertaining to ordure; filthy.

Ore

Honor; grace; favor; mercy; clemency; happy augury.

Oread

One of the nymphs of mountains and grottoes.

Oreades

A group of butterflies which includes the satyrs. See Satyr, 2.

Orectic

Of or pertaining to the desires; hence, impelling to gratification; appetitive.

oreo

A confection consisting of a white cream filling sandwiched between two chocolate cookies.

Oreodon

A genus of extinct herbivorous mammals, abundant in the Tertiary formation of the Rocky Mountains. It is more or less related to the camel, hog, and deer.

Oreodont

Resembling, or allied to, the genus Oreodon.

Oreopteris

A genus of ferns having species, formerly included in genus Dryopteris or Thelypteris.

Oreortyx

A genus of birds including the mountain quail of the western U. S.

Oreoselin

A white crystalline substance which is obtained indirectly from the root of an umbelliferous plant (Imperatoria Oreoselinum), and yields resorcin on decomposition.

Oreosoma

A genus of small oceanic fishes, remarkable for the large conical tubercles which cover the under surface.

Orfe Orf

A bright-colored domesticated variety of the id. See Id.

Orfgild

Restitution for cattle; a penalty for taking away cattle.

Organ

To supply with an organ or organs; to fit with organs; to organize.

organelle

a specialized part of a cell performing a specific function, usually visible under the microscope as a distinct object; it is analogous to an organ{2}, but on a microscopic scale.

Organic

Of or pertaining to an organ or its functions, or to objects composed of organs; consisting of organs, or containing them; as, the organic structure of animals and plants; exhibiting characters peculiar to living organisms; as, organic bodies, organic life, organic remains. Cf. Inorganic.

Organically

In an organic manner; by means of organs or with reference to organic functions; hence, fundamentally.

Organicism

The doctrine of the localization of disease, or which refers it always to a material lesion of an organ.

Organific

Making an organic or organized structure; producing an organism; acting through, or resulting from, organs.

Organism

Organic structure; organization.

Organista

Any one of several South American wrens, noted for the sweetness of their song.

Organizability

Quality of being organizable; capability of being organized.

Organizable

Capable of being organized; esp. (Biol.), capable of being formed into living tissue; as, organizable matter.

organizational

Of or pertaining to organization; as, organizational structure.

Organize

To furnish with organs; to give an organic structure to; to endow with capacity for the functions of life; as, an organized being; organized matter; -- in this sense used chiefly in the past participle.

organized

Same as arranged; as, an organized tour.

organized crime

Groups of persons organized for illegal purposes, such as bootlegging, conducting illegal gambling, loansharking, extortion, etc.; -- a general term encompassing most forms of criminal groups, but especially those that are consolidated into /families/ more or less recognizing each other's different regions of operation; sometimes considered synonymous with the mafia or the syndicate.

Loading more words…