(From Cydon, a town in Crete, where they grew). The quince tree; also called cotonea, and malus cydonia. It is the pyrus cydonia Lin. Sp. Pi. 687. The wild quince tree.

The quince tree is low, a native of the rocky banks of the Danube, and common in our gardens. Its fruit resembles, in shape, round pears; hath an agreeable and strong smell, an austere and acid taste; and its expressed juice, taken in small quantities, is cooling and re-stringent, useful in nauseas, vomitings, nidorous eructations, as well as some kinds of diarrhoeas: by boiling, it loses its astringency. The seeds abound with mucilage, which they yield to boiling water. One drachm makes six ounces of mucilage, resembling in consistency the white of egg, recommended in aphthous affections, and excoriations of the mouth and fauces; though that of the simple gums appears at least equally efficacious. It is the most agreeable of all the mucilages, but is apt to mould in a short time.

The London college directs the following mucilage of quince seed:

Take of quince seed, a drachm; distilled water, eight ounces: boil with a gentle fire, till the water thickens; then strain through a linen cloth.

Formerly a syrup was made of the juice of the fruit, and a conserve, called marmalade, jelly, miva cydonio-rum, or diacydonium; but it is now an article of confectionary only. See Lewis's Mat. Med. Raii Hist. Cydonia exotica. See Covalam. Cyema. See Cuema.