Part 181

Off"take` (?), n. [Off + take.] 1. Act of taking off; specif., the taking off or purchase of goods.

2. Something taken off; a deduction.

3. A channel for taking away air or water; also, the point of beginning of such a channel; a take-off.

Ohm"me`ter (?), n. [Ohm + meter.] (Elec.) An instrument for indicating directly resistance in ohms.

O*ka"pi (?), n. [Native name on the borders of Belgian Kongo, possibly the same word as Mpongwe okapo lean.] A peculiar mammal (Okapia johnostoni) closely related to the giraffe, discovered in the deep forests of Belgian Kongo in 1900. It is smaller than an ox, and somewhat like a giraffe, except that the neck is much shorter. Like the giraffe, it has no dewclaws. There is a small prominence on each frontal bone of the male. The color of the body is chiefly reddish chestnut, the cheeks are yellowish white, and the fore and hind legs above the knees and the haunches are striped with purplish black and cream color.

O"kra (?), n. The pods of the plant okra, used as a vegetable; also, a dish prepared with them; gumbo.

Old Dominion. Virginia; -- a name of uncertain origin, perh. from the old designation of the colony as "the Colony and Dominion of Virginia."

Old Line State. Maryland; a nickname, alluding to the fact that its northern boundary in Mason and Dixon's line.

O`le*og"ra*phy (?), n. 1. Art or process of producing the pictures known as oleographs.

2. A process of identifying oils by their oleographs.

O`le*o oil (?). An oil expressed from certain animal fats (esp. beef suet), the greater portion of the solid fat, or stearin, being left behind. It is mixture of olein, palmitin, and a little stearin.

O*lym"pi*ad (?), n. The quadrennial celebration of the modern Olympic games; as, the first Olympiad (1906).

O*lym"pi*an*ism (?), n. Worship of the Olympian gods, esp. as a dominant cult or religion.

{ O*lym"pic, or O*lym"pi*an, games }. A modified revival of the ancient Olympian games, consisting of international athletic games, races, etc., now held once in four years, the first having been at Athens in 1896.

||Om (?), interj. & n. [Also Aum, Um.] [Skr. m.] A mystic syllable or ejaculation used by Hindus and Buddhists in religious rites, -- orig. among the Hindus an exclamation of assent, like Amen, then an invocation, and later a symbol of the trinity formed by Vishnu, Siva, and Brahma. -- Om mani padme hun, a sacred formula of buddhism (esp. of the Lamaists) translated "O, the Jewel in the Lotus, Amen," and referring to Amitabha, who is commonly represented as standing or sitting within a lotus.

O*mi"cron (?), n. [Written also omikron.] [NL., fr. Gr. ο. See Micro- .] Lit., the little, or short, O, o; the fifteenth letter of the Greek alphabet.

On"cost`, n. (Accounting) In cost accounting, expenditure which is involved in the process of manufacture or the performance of work and which cannot be charged directly to any particular article manufactured or work done (as where different kinds of goods are produced), but must be allocated so that each kind of goods or work shall bear its proper share. [Brit.]

On"do*gram (?), n. [F. onde wave, L. unda + -gram.] (Elec.) The record of an ondograph.

On"do*graph (?), n. [F. onde wave, L. unda + -graph.] (Elec.) An instrument for autographically recording the wave forms of varying currents, esp. rapidly varying alternating currents.

On*dom"e*ter (?), n. [F. onde wave, L. unda + -mater.] An electric wave meter.

||On`do`yant" (?), a. [F., p.pr. of ondoyer to undulate, fr. onde wave, L. unda.] (Art) Wavy; having the surface marked by waves or slightly depressed furrows; as, ondoyant glass.

On"ion*skin` (?), n. [Onion + skin.] A kind of thin translucent paper with a glossy finish.

Ooze, n. (Oceanography) A soft deposit covering large areas of the ocean bottom, composed largely or mainly of the shells or other hard parts of minute organisms, as Foraminifera, Radiolaria, and diatoms. The radiolarian ooze occurring in many places in very deep water is composed mainly of the siliceous skeletons of radiolarians, calcareous matter being dissolved by the lage percentage of carbon dioxide in the water at these depths.

Ooze leather. Leather made from sheep and calf skins by mechanically forcing ooze through them; esp., such leather with a soft, finely granulated finish (called sometimes velvet finish) put on the flesh side for special purposes. Ordinary ooze leather is used for shoe uppers, in bookbinding, etc. Hence Ooze calf, Ooze finish, etc.

O"pal*ine (?), n. 1. An opaline variety of yellow chalcedony.

2. Opal glass.

3. An opaline color or expanse.

O"pen door. (a) Open or free admission to all; hospitable welcome; free opportunity.