1. an ornament or badge made of ribbon or silk that is pleated or gathered to resemble a rose and is used to decorate clothing or is worn in the buttonhole of civilian dress to indicate the possession of certain medals or honors.
2. A roselike marking or formation, such as one of the clusters of spots on a leopard's fur.
3. architecture A painted, carved, or sculptured ornament having a circular arrangement of parts radiating out from the center and suggesting the petals of a rose.
4. botany A circular cluster of leaves that radiate from a center at or close to the ground, as in the dandelion.
5. an ornamental circular band surrounding the central hole of an acoustic guitar.

1. an imitation of a rose by means of ribbon or other material, used especially as an ornament or a badge.
2. an ornament in the form of a rose or roundel, much used in decoration.
3. A red color.
4. A rose burner.
5. one or more whorls of leaves, clustered tightly at the base of a plant.
6. A plant growth form in which the plant grows outward in all directions for a short distance, producing a small round shape.
7. any structure having a flowerlike form; especially, the group of five broad ambulacra on the upper side of the spatangoid and clypeastroid sea urchins.
8. A flowerlike color marking, as on the leopard.
9. A floral pattern in latte art.
10. A clustered formation of tumor cells.

1. an imitation of a rose by means of ribbon or other material, -- used as an ornament or a badge.
2. an ornament in the form of a rose or roundel, -much used in decoration.
3. A red color. see roset.
4. A rose burner. see under rose.
5.
6. any structure having a flowerlike form; especially, the group of five broad ambulacra on the upper side of the spatangoid and clypeastroid sea urchins. see Illust. of spicule, and sand dollar, under sand.
7. A flowerlike color marking.

1. any circular ornament having many small parts in concentric circles, or regularly arranged around the center.
2. specifically— in architecture, an ornament of frequent use in decoration in all styles. in roman architecture rosettes decorate coffers in ceilings and soffits of cornices, and appear as a central ornament of the abacus of the corinthian order. in medieval architecture rosettes are abundant, and consist usually of a knot of foliage inscribed in a circle, trefoil, or quatrefoil. see also cut under patera.
3. A knot of ribbon or a bunch of colored worsted used as an ornament of costume, especially one of the two bunches of ribbons attached to the loops by which an officer's gorget was suspended on his chest.
4. any object or arrangement resembling in form a full-blown rose.
5. same as roset.
6. in zoology and anatomy, a natural formation of parts resembling a rose. see rose, 9.
7. A curve whose polar equation is r = a + sin m
8. nautical, a form of knot.
9. in metallurgy, a disk or plate formed by throwing water on melted metal. see rosette-copper, and compare quenching, 2.
10.
11. in electricity: A cluster of glow-lamps or of sockets arranged for the mounting of such lamps.
12. an electrical fixture used when a branch is to be taken from the main wires. it consists, usually, of a porcelain base, which is fastened to a ceiling or other support, and a porcelain cover through a hole in which the branch wires run. removing the cover disconnects the branch wires from the mains.

1. a cluster of leaves growing in crowded circles from a common center or crown (usually at or close to the ground)
2. circular window filled with tracery
3. an ornament or pattern resembling a rose that is worn as a badge of office or as recognition of having won an honor
4. rhizoctinia disease of potatoes