1. (n.)scallop any usu. ribbed bivalve mollusk of the family Pectinidae that swims by clapping the fluted shell valves together.
2. scallop the adductor muscle of certain species of such mollusks, used as food.
3. scallop one of the shells of such a mollusk, usu. having radial ribs and a wavy outer edge.
4. scallop a scallop shell or scalloplike plate for baking and serving food.
5. scallop a thin slice of meat, esp. veal, flattened by pounding.
6. scallop any of a series of curved projections cut along an edge, as of a fabric.
7. (v.t.)scallop to finish (an edge) with scallops.
8. scallop to escallop.
9. (v.i.)scallop to dredge for scallops.
Etymology: (1350–1400; ME scalop, aph. var. of escal(l)op < OF
Definition of 'scallop'
Princeton's WordNet
1. (noun)scallop, crenation, crenature, crenel, crenelle one of a series of rounded projections (or the notches between them) formed by curves along an edge (as the edge of a leaf or piece of cloth or the margin of a shell or a shriveled red blood cell observed in a hypertonic solution etc.)
2. (noun)scallop, scollop, escallop edible muscle of mollusks having fan-shaped shells; served broiled or poached or in salads or cream sauces
3. (noun)cutlet, scallop, scollop, escallop thin slice of meat (especially veal) usually fried or broiled
4. (verb)scallop, scollop, escallop edible marine bivalve having a fluted fan-shaped shell that swim by expelling water from the shell in a series of snapping motions
5. (verb)scallop decorate an edge with scallops "the dress had a scalloped skirt"
6. (verb)scallop, escallop bake in a sauce, milk, etc., often with breadcrumbs on top
7. (verb)scallop, scollop form scallops in "scallop the meat"
8. (verb)scallop, scollop fish for scallops
9. (verb)scallop, scollop shape or cut in scallops "scallop the hem of the dress"
1. (noun)scallop a shellfish with ridges on its shell, that can be eaten
Definition of 'scallop'
Webster Dictionary
1. (noun)scallop any one of numerous species of marine bivalve mollusks of the genus Pecten and allied genera of the family Pectinidae. The shell is usually radially ribbed, and the edge is therefore often undulated in a characteristic manner. The large adductor muscle of some the species is much used as food. One species (Vola Jacobaeus) occurs on the coast of Palestine, and its shell was formerly worn by pilgrims as a mark that they had been to the Holy Land. Called also fan shell. See Pecten, 2
2. (noun)scallop one of series of segments of circles joined at their extremities, forming a border like the edge or surface of a scallop shell
3. (noun)scallop one of the shells of a scallop; also, a dish resembling a scallop shell
4. (noun)scallop to bake in scallop shells or dishes; to prepare with crumbs of bread or cracker, and bake. See Scalloped oysters, below
5. (verb)scallop to mark or cut the edge or border of into segments of circles, like the edge or surface of a scallop shell. See Scallop, n., 2
Definitions of scallop 
Afrikaans: kammossel
Arabic: الأسْقَلوب: مَحار مَرْوَح
Bulgarian: раковина
Brazilian: escalope
Czech: hřebenatka
German: die Kammuschel
Danish: kammusling
Greek: χτένι (το οστρακόδερμο)
Spanish: vieira
Estonian: kammkarp
Farsi: اسكالوپ
Finnish: kampasimpukka
French: coquille Saint-Jacques
Hebrew: צִדפָה
Hindi: शम्बूक, शंख, घोंघा, तवा
Croatian: jakovska kapica
Hungarian: fésűkagyló
Indonesian: kerang
Icelandic: hörpudiskur/-skel
Italian: capasanta
Japanese: ほたて貝
Korean: 가리비
Lithuanian: šukutės, geldutė
Latvian: ķemmes gliemene
Malay: kekapis
Dutch: kamschelp
Norwegian: kammusling
Polish: małż
Persian: اسكالوپ
Pashto: صدف وال كب، سيپۍ، ليس ، ح
Portuguese: vieira
Romanian: scoică
Russian: гребешок
Slovak: hrebenatka, lastúra
Slovenian: pokrovača (školjka)
Serbian: školjka
Swedish: kammussla
Thai: หอยแครง
Turkish: tarak
Taiwanese: 扇貝
Ukrainian: гребінець
Urdu: دو صمامی خوردنی صدفہ یا س
Vietnamese: conđiệp, sò
Chinese: 扇贝
