n. (Zool.) A European scallop (Pecten opercularis), used as food. [ Prov. Eng. ] [ 1913 Webster ]

n. [ Quinoline + aldehyde + aniline. ] (Chem.) A colorless liquid of a slightly pungent odor, C9H6N.CH3, first obtained as a condensation product of aldehyde and aniline, and regarded as a derivative of quinoline; -- called also methyl quinoline. [ Written also chinaldine. ] [ 1913 Webster ]

a. [ L. quinarius, from quini five each, akin to quinque five: cf. F. quinaire. See Five. ] Consisting of five; arranged by fives. Boyle. [ 1913 Webster ]

Quinary system (Zool.), a fanciful classification based on the hypothesis that each group contains five types. [ 1913 Webster ]

a. [ L. quini five each. ] (Bot.) Growing in sets of five; -- said especially of leaves composed of five leaflets set at the end of a common petiole. [ 1913 Webster ]

n. (Chem.) A salt of quinic acid. [ Written also kinate. ] [ 1913 Webster ]

n. [ Quinoline + azote. ] (Chem.) A complex nitrogenous base related to cinnoline. [ Written also chinazol. ] [ 1913 Webster ]

n. [ Prob. a pl. from OE. quyne, coin, OF. coin, cooin, F. coing, from L. Cydonius a quince tree, as adj., Cydonian, Gr. &unr_; Cydonian, &unr_; &unr_; a quince, fr. &unr_; Cydonia, a city in Crete, &unr_; the Cydonians. Cf. Quiddany. ] 1. The fruit of a shrub (Cydonia vulgaris) belonging to the same tribe as the apple. It somewhat resembles an apple, but differs in having many seeds in each carpel. It has hard flesh of high flavor, but very acid, and is largely used for marmalade, jelly, and preserves. [ 1913 Webster ]

2. (Bot.) a quince tree or shrub. [ 1913 Webster ]

Japan quince (Bot.), an Eastern Asiatic shrub (Cydonia Japonica, formerly Pyrus Japonica) and its very fragrant but inedible fruit. The shrub has very showy flowers, usually red, but sometimes pink or white, and is much grown for ornament. --
Quince curculio (Zool.), a small gray and yellow curculio (Conotrachelus cratægi) whose larva lives in quinces. --
Quince tree (Bot.), the small tree (Cydonia vulgaris) which produces the quince. [ 1913 Webster ]

n. (Bot.) The squinancy. Called also quinsywort. [ 1913 Webster ]

v. i. [ Cf. OD. quincken to quiver, shake, Fries. quink hovering. Cf. Quich. ] To stir; to wince. [ Obs. ] Spenser. [ 1913 Webster ]

[ L. quincuncialis, from quincunx. See Quincunx. ] [ 1913 Webster ]

1. Having the form of a quincunx. [ 1913 Webster ]

2. (Bot.) Having the leaves of a pentamerous calyx or corolla so imbricated that two are exterior, two are interior, and the other has one edge exterior and one interior; as, quincuncial æstivation. [ 1913 Webster ]

Quincuncial phyllotaxy (Bot.), an arrangement of five leaves in a spiral, each leaf two fifths of a circle from the next. [ 1913 Webster ]