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he act of omitting; neglect or failure to do something required by propriety or duty. The most natural division of all offenses is into those of omission and those of commission. Addison.

e undone; to neglect. Her father omitted nothing in her education that might make her the most accomplished woman of her age. Addison.

Above all others; particularly. [Obs.] His most only elected mistress. Marston.

An ingredient of the Mosaic incense, probably the operculum of some kind of strombus. Ex. xxx. 34.

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 oöphore is a minute prothallus; in mosses it…

drama, either tragic or comic, of which music forms an essential part; a drama wholly or mostly sung, consisting of recitative, arials, choruses, duets, trios, etc., with orchestral accompaniment, preludes, and interludes, together with appropriate costumes, scenery, and action; a lyric drama.

Closed by a lid or cover, as the capsules of the mosses.

The lid of the urnlike capsule of mosses.

ndian snakes, which feed on other snakes. Ophiophagus elaps is said to be the largest and most deadly of poisonous snakes.

Convenient; ready; hence, seasonable; timely. Milton. This is most opportune to our need. Shak. -- Op`por*tune"ly, adv. -- Op`por*tune"ness, n.

erior surfaces. In a normal eye it is in the direction of the optic axis that objects are most distinctly seen. (b) The line in a doubly refracting crystal, in the direction of which no double refraction occurs. A uniaxial crystal has one such line, a biaxial crystal has two. -- Optical circle (Opt.), a graduated circ…

A disposition to take the most hopeful view; -- opposed to pessimism.

A genus (Atriplex) of herbs or low shrubs of the Goosefoot family, most of them with a mealy surface. Garden orache, a plant (Atriplex hortensis), often used as a pot herb; -- also called mountain spinach.

The sanctuary, or Most Holy place in the temple; also, the temple itself. 1 Kings vi. 19. Siloa's brook, that flow'd Fast by the oracle of God. Milton.

l order (Orchidaceæ) 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 p…

According to established rules or settled method; as a rule; commonly; usually; in most cases; as, a winter more than ordinarily severe. Those who ordinarily pride themselves not a little upon their penetration. I. Taylor.

o a division of the Silurian formation, corresponding in general to the Lower Silurian of most authors, exclusive of the Cambrian. -- n.

s for the performance of the functions necessary to life. The cell may be regarded as the most simple, the most common, and the earliest form of organization. McKendrick.

us; superior; pure; perfect; pellucid; -- used of gems and also figuratively, because the most perfect jewels are found in the East. "Pearls round and orient." Jer. Taylor. "Orient gems." Wordsworth. "Orient liquor in a crystal glass." Milton.

The opinions of Origen of Alexandria, who lived in the 3d century, one of the most learned of the Greek Fathers. Prominent in his teaching was the doctrine that all created beings, including Satan, will ultimately be saved.