Once.

A reflexive form of the indefinite pronoun one. Commonly written as two words, one's self.

Scarcely. See Unnethe.

The act of going forward; progress; (pl.) affairs; business; current events.

Occurring at present; progressing; in progress; continuing; not past, completed, or future; as, an ongoing petition drive; an ongoing effort.

An unguent.

A liliaceous plant of the genus Allium (Allium cepa), having a strong-flavored bulb and long hollow leaves; also, its bulbous root, much used as an article of food. The name is often extended to other species of the genus.

A dome with a pointed top, its width often extending beyond the width of the tower it covers; -- a style of architecture characteristic of Russian Orthodox churches.

A kind of thin but strong translucent paper with a glossy finish.

See Oneirocritic.

The type genus of the Oniscidae, consisting of woodlice that cannot roll into a ball.

The state of being alone.

Aloft; above ground.

Save or except (that); -- an adversative used elliptically with or without that, and properly introducing a single fact or consideration.

A white crystalline waxy substance extracted from the root of the leguminous plant Ononis spinosa.

A genus consisting of only species: the sensitive fern; in some classifications it is included in the Polypodiaceae.

Foolish discourse.

Divination by the letters of a name; nomancy.

Of or pertaining to onomancy.

Applied to a signature when the body of the instrument is in another's handwriting.

A collection of names and terms; a dictionary; specif., a collection of Greek names, with explanatory notes, made by Julius Pollux about a. d. 180.

Prognostication by the letters of a name.

One versed in the history of names.

The science of names or of their classification.

An imitative word; an onomatopoetic word.

The formation of words in imitation of sounds; a figure of speech in which the sound of a word is imitative of the sound of the thing which the word represents; as, the buzz of bees; the hiss of a goose; the crackle of fire.

Onomatopoetic.

Of or pertaining to onomatopoeia; characterized by onomatopoeia; imitative; as, an onomatopoetic writer or word.

Onomatopoeia.

See Onomancy.

A tribe of Indians formerly inhabiting what is now a part of the State of New York. They were the central or head tribe of the Five Nations.

A rushing onward.

To assault; to set upon.

coming from the sea toward the land; -- of winds and weather; as, an onshore gale. Opposed to offshore.

Not offside; being within the prescribed area of play.

An attack; an onset; esp., a furious or murderous attack or assault.

A single farmhouse; a steading.

On the top of; upon; on. See On to, under On, prep.

Of or pertaining to ontogenesis; as, ontogenetic phenomena.

Ontogenetic.

The history of the individual development of an organism; the sequence of events involved in the development of an organism; the history of the evolution of the germ; the development of an individual organism, -- in distinction from phylogeny, or evolution of the tribe. Called also henogenesis, henogeny.

Ontological.

Of or pertaining to ontology.

In an ontological manner.

One who is versed in or treats of ontology.

That department of the science of metaphysics which investigates and explains the nature and essential properties and relations of all beings, as such, or the principles and causes of being.

A burden; an obligation.

Toward a point before or in front; forward; progressively; as, to move onward.

Progress; advancement.

Onward.

Any.

A whitlow. An affection of a finger or toe, attended with ulceration at the base of the nail, and terminating in the destruction of the nail.

Divination by the nails.

Malacopoda.

Any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms; a member of the Onychophora, also called Malacopoda. See Malacopoda.

bearing a name; as, articles in magazines are usually onymous. Opposite of anonymous.

Chalcedony in parallel layers of different shades of color. It is used for making cameos, the figure being cut in one layer with the next as a ground.

Deep, jet-black.

One.

Any of several beautiful birds of the genus Moho, including the extinct Moho nobilis. They are honey-eaters native to the Hawaiian Islands. It yields the brilliant yellow feathers formerly used in making the royal robes. Called also yellow-tufted honeysucker.

The development, or mode of origin, of the ova.

A special cell in certain cryptogamous plants containing oospheres, as in the rockweeds (Fucus), and the orders Vaucherieae and Peronosporeae.

Shaped like an egg.

Oak.

A variety of limestone, consisting of small round grains, resembling the roe of a fish. It sometimes constitutes extensive beds, as in the European Jurassic. See the Chart of Geology.

Of or pertaining to oolite; composed of, or resembling, oolite.

Of or pertaining to oology.

One versed in oology.

The science of eggs in relation to their coloring, size, shape, and number.

A fragrant variety of black tea having somewhat the flavor of green tea.

A long, broad boat used by the Eskimos.

One.

Once.

To bind with a thread or cord; to join; to unite.

A kind of black tea.

An alternately produced form of certain cryptogamous plants, as ferns, mosses, and the like, which bears antheridia and archegonia, and so has sexual fructification, as contrasted with the sporophore, which is nonsexual, but produces spores in countless number. In ferns the oophore is a minute prothallus; in mosses it is the leafy plant.

Ovariotomy.

Having the nature of, or belonging to, an oophore.

The macrosporangium or case for the larger kind of spores in heterosporous flowerless plants.

Ovaritis.

Any plant of a proposed class or grand division (collectively termed oophytes or Oophyta), which have their sexual reproduction accomplished by motile antherozoids acting on oospheres, either while included in their oogonia or after exclusion.

Of or pertaining to an oophyte.

A wild, bearded sheep inhabiting the Ladakh mountains. It is reddish brown, with a dark beard from the chin to the chest.

The ovum, after fusion with the spermatozoon in impregnation.

An oogonium; also, a case containing oval or rounded spores of some other kind than oospores.

A special kind of spore resulting from the fertilization of an oosphere by antherozoids. A fertilized oosphere in the ovule of a flowering plant.

Of or pertaining to an oospore.

One of the plates which in some Crustacea inclose a cavity wherein the eggs are hatched.

An egg case, especially those of many kinds of mollusks, and of some insects, as the cockroach. Cf. Ooecium.

A half oviparous, or an oviparous, mammal; a marsupial or monotreme.

The part of the oviduct of certain trematode worms in which the ova are completed and furnished with a shell.

To cause to ooze.

leaking out slowly.

Same as Acrita.

Miry; containing soft mud; resembling ooze; as, the oozy bed of a river.

To darken; to cloud.

The state of being opaque; the quality of a body which renders it impervious to the rays of light; want of transparency; opaqueness.

Opaque.

Opaque.

A large oceanic fish (Lampris guttatus), inhabiting the Atlantic Ocean. It is remarkable for its brilliant colors, which are red, green, and blue, with tints of purple and gold, covered with round silvery spots. Called also king of the herrings.

See Opaque.

A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity.

To give forth a play of colors, like the opal.

A reflection of a milky or pearly light from the interior of a mineral, as in the moonstone; the state or quality of being opalescent.

Reflecting a milky or pearly light from the interior; having an opaline play of colors.

An opaline variety of yellow chalcedony.

To convert into opal, or a substance like opal.

A picture taken on /milky/ glass.

That which is opaque; opacity.

The state or quality of being impervious to light; opacity.

To open.

An instrument, consisting of a tube having one end open and the other end covered with a thin flexible membrance to the center of which is attached a small mirror. It is used for exhibiting upon a screen, by means of rays reflected from the mirror, the vibratory motions caused by sounds produced at the open end of the tube, as by speaking or singing into it.

A bright-colored European actinian (Anemonia sulcata, syn. Anthea sulcata); -- so called because it does not retract its tentacles.

To unclose; to form a hole, breach, or gap; to be unclosed; to be parted.

Taking place in the open air; outdoor; as, an open-air game or meeting.

not cyclic; having no rings of atoms within the molecular structure; having an open chain structure. Opposite of cyclic.

not buttoned at the neck; -- of a shirt; as, dressed casually in shorts and an open-collared shirt.

allowing for a spontaneous response; as, an open-ended question. Contrasted to multiple-choice.

With eyes widely open; alert to possible danger; watchful; vigilant.

Generous; liberal; munificent.