Oncidium to Onto
(||On*cid"i*um) n. [NL.] (Bot.) A genus of tropical orchidaceous plants, the flower of one
species of which (O. Papilio) resembles a butterfly.
(On"co*graph) n. [Gr. bulk + -graph.] (Physiol.) An instrument for registering the changes
observable with an oncometer.
(On*com"e*ter) n. [Gr. bulk + -meter.] (Physiol.) An instrument for measuring the variations
in size of the internal organs of the body, as the kidney, spleen, etc.
(On*cot"o*my) n. [Gr. 'o`gkos bulk, mass + te`mnein to cut: cf. F. oncotomie.] (Surg.)
The opening of an abscess, or the removal of a tumor, with a cutting instrument. [Written also onkotomy.]
(Onde) n. [AS. anda malice, anger; akin to Icel. andi, önd, breath.] Hatred; fury; envy. [Obs.]
(||On` dit") [F.] They say, or it is said. n. A flying report; rumor; as, it is a mere on dit.
(-one) [From Gr. -w`nh, signifying, female descendant.] (Chem.) A suffix indicating that the substance,
in the name of which it appears, is a ketone; as, acetone.
(-one).(Chem.) A termination indicating that the hydrocarbon to the name of which it is affixed belongs
to the fourth series of hydrocarbons, or the third series of unsaturated hydrocarbonsl as, nonone.
(One) a. [OE. one, on, an, AS. än; akin to D. een, OS. ën, OFries. ën, än, G. ein, Dan. een,
Sw. en, Icel. einn, Goth. ains, W. un, Ir. & Gael. aon, L. unus, earlier oinos, oenos, Gr. the
ace on dice; cf. Skr. ëka. The same word as the indefinite article a, an. &radic 299. Cf. 2d A, 1st An,
Alone, Anon, Any, None, Nonce, Only, Onion, Unit.]
1. Being a single unit, or entire being or thing, and no more; not multifold; single; individual.
The dream of Pharaoh is one.Gen. xli. 25.
O that we now had hereShak.
But one ten thousand of those men in England.
2. Denoting a person or thing conceived or spoken of indefinitely; a certain. "I am the sister of one Claudio" [Shak.],
that is, of a certain man named Claudio.
3. Pointing out a contrast, or denoting a particular thing or person different from some other specified;
used as a correlative adjective, with or without the.
From the one side of heaven unto the other.Deut. iv. 32.
4. Closely bound together; undivided; united; constituting a whole.
The church is therefore one, though the members may be many.Bp. Pearson
5. Single in kind; the same; a common.
One plague was on you all, and on your lords.1 Sam. vi. 4.
6. Single; inmarried. [Obs.]
Men may counsel a woman to be one.Chaucer.
One is often used in forming compound words, the meaning of which is obvious; as, one-armed, one-
celled, one-eyed, one-handed, one-hearted, one- horned, one-idead, one-leaved, one-masted,
one-ribbed, one-story, one-syllable, one- stringed, one-winged, etc.