a. [ Compar. Odder superl. Oddest. ] [ OE. odde, fr. Icel. oddi a tongue of land, a triangle, an odd number (from the third or odd angle, or point, of a triangle), orig., a point, tip; akin to Icel. oddr point, point of a weapon, Sw. udda odd, udd point, Dan. od, AS. ord, OHG. ort, G. ort place (cf. E. point, for change of meaning). ] 1. Not paired with another, or remaining over after a pairing; without a mate; unmatched; single; as, an odd shoe; an odd glove. [ 1913 Webster ]

2. Not divisible by 2 without a remainder; not capable of being evenly paired, one unit with another; as, 1, 3, 7, 9, 11, etc., are odd numbers. [ 1913 Webster ]

I hope good luck lies in odd numbers. Shak. [ 1913 Webster ]

3. Left over after a definite round number has been taken or mentioned; indefinitely, but not greatly, exceeding a specified number; extra. [ 1913 Webster ]

Sixteen hundred and odd years after the earth was made, it was destroyed in a deluge. T. Burnet. [ 1913 Webster ]

There are yet missing of your company
Some few odd lads that you remember not. Shak. [ 1913 Webster ]

4. Remaining over; unconnected; detached; fragmentary; hence, occasional; inconsiderable; as, odd jobs; odd minutes; odd trifles. [ 1913 Webster ]

5. Different from what is usual or common; unusual; singular; peculiar; unique; strange. “An odd action.” Shak. “An odd expression.” Thackeray.
Syn. -- extraordinary; queer. [ 1913 Webster ]

The odd man, to perform all things perfectly, is, in my poor opinion, Joannes Sturmius. Ascham. [ 1913 Webster ]

Patients have sometimes coveted odd things. Arbuthnot. [ 1913 Webster ]

Locke's Essay would be a very odd book for a man to make himself master of, who would get a reputation by critical writings. Spectator. [ 1913 Webster ]

Syn. -- Quaint; unmatched; singular; unusual; extraordinary; strange; queer; eccentric; whimsical; fantastical; droll; comical. See Quaint. [ 1913 Webster ]

n. 1. A person with an unusual or odd personality; an eccentric person. [ informal ]
Syn. -- eccentric, eccentric person, geek. [ WordNet 1.5 ]

2. Hence: Anything unusual in its class. [ PJC ]

Pluto is an oddball among its eight sister planets. It's the smallest in both size and mass, and has the most elliptical orbit. It moves in a plane tilted markedly away from the other planets' orbits. Moreover, Pluto is the only planet made almost entirely of ice. Ron Cohen (Science News, Feb. 27, 1999, p. 139)

a. Eccentric; very unusual; strange; bizarre; as, an oddball request. [ informal ] [ PJC ]

A member of a secret order, or fraternity, styled the Independent Order of Odd Fellows, established for mutual aid and social enjoyment. [ 1913 Webster ]

n.; pl. Oddities 1. The quality or state of being odd; singularity; queerness; peculiarity; as, oddity of dress, manners, and the like. [ 1913 Webster ]

That infinitude of oddities in him. Sterne. [ 1913 Webster ]

2. That which is odd; as, a collection of oddities. [ 1913 Webster ]

adj. varied and irregularly performed; -- of paid labor; as, he found only odd-job employment. [ prenominal ] [ WordNet 1.5 ]

adv. 1. In an odd manner; unevenly. [ R. ] [ 1913 Webster ]

2. In a peculiar manner; strangely; queerly; curiously. “A figure a little more oddly turned.” Locke. [ 1913 Webster ]

A great black substance, . . . very oddly shaped. Swift. [ 1913 Webster ]

3. (Math.) In a manner measured by an odd number. [ 1913 Webster ]

n. [ Odd + -ment. ] An odd thing, or one that is left over, disconnected, fragmentary, or the like; something that is separated or disconnected from its fellows; Specif.: (Printing) Any separate small part or page in a book, other than the text, such as the title page, contents, etc.

A miscellaneous collection of riddles, charms, gnomic verses, and “oddments” of different kinds. Saintsbury. [ Webster 1913 Suppl. ]

2. A piece of cloth that is left over after the rest has been used or sold.
Syn. -- end, remainder, remnant, scrap. [ WordNet 1.5 ]

3. Something unusual, and perhaps worthy of collecting.
Syn. -- curio, curiosity, oddity, peculiarity, rarity, collectible. [ WordNet 1.5 ]

4. pl. Odds and ends; a motley assortment of things.
Syn. -- odds and ends, melange, farrago, ragbag, hodgepodge, hotchpotch, omnium-gatherum. [ WordNet 1.5 ]

n. 1. The state of being odd, or not even. [ 1913 Webster ]

Take but one from three, and you not only destroy the oddness, but also the essence of that number. Fotherby. [ 1913 Webster ]

2. Singularity; strangeness; eccentricity; irregularity; uncouthness; as, the oddness of dress or shape; the oddness of an event. Young. [ 1913 Webster ]

adj. (Bot.) Pinnate with a single leaflet at the apex; -- of a leaf shape.
Syn. -- imparipinnate. [ WordNet 1.5 ]