lower pair

lower pair
Pair Pair (p[^a]r), n. [F. paire, LL. paria, L. paria, pl. of par pair, fr. par, adj., equal. Cf. {Apparel}, {Par} equality, {Peer} an equal.] [1913 Webster] 1. A number of things resembling one another, or belonging together; a set; as, a pair or flight of stairs. ``A pair of beads.'' --Chaucer. --Beau. & Fl. ``Four pair of stairs.'' --Macaulay.

Note: [Now mostly or quite disused.] [1913 Webster]

Two crowns in my pocket, two pair of cards. --Beau. & Fl. [1913 Webster]

2. Two things of a kind, similar in form, suited to each other, and intended to be used together; as, a pair of gloves or stockings; a pair of shoes. [1913 Webster]

3. Two of a sort; a span; a yoke; a couple; a brace; as, a pair of horses; a pair of oxen. [1913 Webster]

4. A married couple; a man and wife. ``A happy pair.'' --Dryden. ``The hapless pair.'' --Milton. [1913 Webster]

5. A single thing, composed of two pieces fitted to each other and used together; as, a pair of scissors; a pair of pants; a pair of tongs; a pair of bellows. [1913 Webster]

6. Two members of opposite parties or opinion, as in a parliamentary body, who mutually agree not to vote on a given question (in order, for example, to allow the members to be absent during the vote without affecting the outcome of the vote), or on issues of a party nature during a specified time; as, there were two pairs on the final vote. [Parliamentary Cant]

Note: A member who is thus paired with one who would have voted oppositely is said to be paired for or paired against a measure, depending on the member's position. [1913 Webster +PJC]

7. (Kinematics) In a mechanism, two elements, or bodies, which are so applied to each other as to mutually constrain relative motion. [1913 Webster]

Note: Pairs are named in accordance with the kind of motion they permit; thus, a journal and its bearing form a {turning pair}, a cylinder and its piston a {sliding pair}, a screw and its nut a {twisting pair}, etc. Any pair in which the constraining contact is along lines or at points only (as a cam and roller acting together), is designated a {higher pair}; any pair having constraining surfaces which fit each other (as a cylindrical pin and eye, a screw and its nut, etc.), is called a {lower pair}. [1913 Webster]

{Pair royal} (pl. {Pairs Royal}) three things of a sort; -- used especially of playing cards in some games, as cribbage; as three kings, three ``eight spots'' etc. Four of a kind are called a double pair royal. ``Something in his face gave me as much pleasure as a pair royal of naturals in my own hand.'' --Goldsmith. ``That great pair royal of adamantine sisters [the Fates].'' --Quarles. [Written corruptly {parial} and {prial}.] [1913 Webster]

Syn: {Pair}, {Flight}, {Set}.

Usage: Originally, pair was not confined to two things, but was applied to any number of equal things (pares), that go together. Ben Jonson speaks of a pair (set) of chessmen; also, he and Lord Bacon speak of a pair (pack) of cards. A ``pair of stairs'' is still in popular use, as well as the later expression, ``flight of stairs.'' [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Pair — (p[^a]r), n. [F. paire, LL. paria, L. paria, pl. of par pair, fr. par, adj., equal. Cf. {Apparel}, {Par} equality, {Peer} an equal.] [1913 Webster] 1. A number of things resembling one another, or belonging together; a set; as, a pair or flight… …   The Collaborative International Dictionary of English

  • Pair royal — Pair Pair (p[^a]r), n. [F. paire, LL. paria, L. paria, pl. of par pair, fr. par, adj., equal. Cf. {Apparel}, {Par} equality, {Peer} an equal.] [1913 Webster] 1. A number of things resembling one another, or belonging together; a set; as, a pair… …   The Collaborative International Dictionary of English

  • Pair programming — is an agile software development technique in which two programmers work together at one workstation. One, the driver, types in code while the other, the observer (or navigator[1]), reviews each line of code as it is typed in. The two programmers …   Wikipedia

  • Lower case — (also lower case or lowercase ), minuscule, or small letters are the smaller form of letters, as opposed to upper case or capital letters, as used in European alphabets (Greek, Latin, Cyrillic, and Armenian). For example, the letter a is lower… …   Wikipedia

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  • Lower Mill, Woodchurch — Infobox Windmill name = Lower Mill, Woodchurch caption = name of mill = location of mill = TQ 943 353 Coord|51.084|0.773|display=inline|format=dms operator = Kent County Council built = 1820 purpose = Corn mill type = Smock mill storeys = Four… …   Wikipedia

  • higher pair — Pair Pair (p[^a]r), n. [F. paire, LL. paria, L. paria, pl. of par pair, fr. par, adj., equal. Cf. {Apparel}, {Par} equality, {Peer} an equal.] [1913 Webster] 1. A number of things resembling one another, or belonging together; a set; as, a pair… …   The Collaborative International Dictionary of English

  • sliding pair — Pair Pair (p[^a]r), n. [F. paire, LL. paria, L. paria, pl. of par pair, fr. par, adj., equal. Cf. {Apparel}, {Par} equality, {Peer} an equal.] [1913 Webster] 1. A number of things resembling one another, or belonging together; a set; as, a pair… …   The Collaborative International Dictionary of English

  • turning pair — Pair Pair (p[^a]r), n. [F. paire, LL. paria, L. paria, pl. of par pair, fr. par, adj., equal. Cf. {Apparel}, {Par} equality, {Peer} an equal.] [1913 Webster] 1. A number of things resembling one another, or belonging together; a set; as, a pair… …   The Collaborative International Dictionary of English

  • twisting pair — Pair Pair (p[^a]r), n. [F. paire, LL. paria, L. paria, pl. of par pair, fr. par, adj., equal. Cf. {Apparel}, {Par} equality, {Peer} an equal.] [1913 Webster] 1. A number of things resembling one another, or belonging together; a set; as, a pair… …   The Collaborative International Dictionary of English

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