Main Difference
The main difference between Clam and Scallop is that the Clam is a common name and Scallop is a common name for several shellfish.
Clam vs. Scallop
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Clam
Clam is a common name for several kinds of bivalve molluscs. The word is often applied only to those that live as infauna, spending most of their lives partially buried in the sand of the ocean floor. In particular, edible infaunal bivalves are often called clams. Clams have two shells of equal size connected by two adductor muscles and have a powerful burrowing foot. Clams in the culinary sense do not live attached to a substrate (whereas oysters and mussels do) and do not live near the bottom (whereas scallops do). In culinary usage, clams are commonly eaten marine bivalves, as in clam digging and the resulting soup, clam chowder. Many edible clams such as palourde clams are oval or triangular; however, razor clams have an elongated parallel-sided shell, suggesting an old-fashioned straight razor.
Some clams have life cycles of only one year, while at least one may be over 500 years old. All clams have two calcareous shells or valves joined near a hinge with a flexible ligament, and all are filter feeders.
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Scallop
Scallop () is a common name that is primarily applied to any one of numerous species of saltwater clams or marine bivalve mollusks in the taxonomic family Pectinidae, the scallops. However, the common name "scallop" is also sometimes applied to species in other closely related families within the superfamily Pectinoidea, which also includes the thorny oysters.
Scallops are a cosmopolitan family of bivalves which are found in all of the world's oceans, although never in freshwater. They are one of very few groups of bivalves to be primarily "free-living", with many species capable of rapidly swimming short distances and even of migrating some distance across the ocean floor. A small minority of scallop species live cemented to rocky substrates as adults, while others attach themselves to stationary or rooted objects such as sea grass at some point in their lives by means of a filament they secrete called a byssal thread. The majority of species, however, live recumbent on sandy substrates, and when they sense the presence of a predator such as a starfish, they may attempt to escape by swimming swiftly but erratically through the water using jet propulsion created by repeatedly clapping their shells together. Scallops have a well-developed nervous system, and unlike most other bivalves all scallops have a ring of numerous simple eyes situated around the edge of their mantles.
Many species of scallop are highly prized as a food source, and some are farmed as aquaculture. The word "scallop" is also applied to the meat of these bivalves, the adductor muscle, that is sold as seafood. The brightly coloured, symmetrical, fan-shaped shells of scallops with their radiating and often fluted ornamentation are valued by shell collectors, and have been used since ancient times as motifs in art, architecture and design.
Owing to their widespread distribution, scallop shells are a common sight on beaches and are often brightly coloured, making them a popular object to collect among beachcombers and holidaymakers.
Wikipedia
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Clam (noun)
A bivalve mollusk of many kinds, especially those that are edible; for example the soft-shell clam (Mya arenaria), the hard clam (Mercenaria mercenaria), the sea clam or hen clam (ver=161126), and other species. The name is said to have been given originally to the Tridacna gigas, a huge East Indian bivalve.
Clam (noun)
Strong pincers or forceps.
Clam (noun)
A kind of vise, usually of wood.
Clam (noun)
A dollar (usually used in the plural).
"Those sneakers cost me fifty clams!"
Clam (noun)
A Scientologist.
Clam (noun)
A vagina.
Clam (noun)
One who clams up; a taciturn person, one who refuses to speak.
Clam (noun)
clamminess; moisture
Clam (verb)
To dig for clams.
Clam (verb)
To produce, in bellringing, a clam or clangor; to cause to clang.
Clam (verb)
To be moist or glutinous; to stick; to adhere.
Clam (verb)
To clog, as with glutinous or viscous matter.
Clam (adjective)
clammy.
Scallop (noun)
Any of various marine bivalve molluscs of the family Pectinidae which are free-swimming.
Scallop (noun)
One of a series of curves, forming an edge similar to a scallop shell.
Scallop (noun)
A fillet of meat, escalope.
Scallop (noun)
A form of fried potato.
Scallop (noun)
A dish shaped like a scallop shell.
Scallop (verb)
To create or form an edge in the shape of a crescent or multiple crescents.
Scallop (verb)
To make or cook scallops
Scallop (verb)
To bake in a casserole (gratin), originally in a scallop shell; especially used in form scalloped
Scallop (verb)
To harvest scallops
Wiktionary
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Clam (noun)
a marine bivalve mollusc with shells of equal size.
Clam (noun)
any of a number of edible bivalve molluscs, e.g. a scallop.
Clam (noun)
a dollar.
Clam (verb)
dig for or collect clams
"November is one of the worst times for clamming"
Clam (verb)
abruptly stop talking
"as soon as I ask if any of this can go on the record, he clams up"
Scallop (noun)
an edible bivalve mollusc with a ribbed fan-shaped shell. Scallops swim by rapidly opening and closing the shell valves.
Scallop (noun)
short for scallop shell
Scallop (noun)
a small pan or dish shaped like a scallop shell and used for baking or serving food.
Scallop (noun)
each of a series of convex rounded projections forming an ornamental edging cut in material or worked in lace or knitting in imitation of the edge of a scallop shell
"an intricate design of vees and scallops"
"the tablecloth has a scallop edge"
Scallop (noun)
another term for escalope
Scallop (verb)
ornament (an edge or material) with scallops
"the beaded lace overlay scalloped the neckline of the dress"
Scallop (verb)
cut, shape, or arrange in the form of a scallop shell
"the spaces between the frets are scalloped out to form concavities"
Scallop (verb)
gather or dredge for scallops
"in fall and early winter they went scalloping"
Scallop (verb)
bake with milk or a sauce
"the potatoes were scalloped with green peppers, onions, and herbs"
Oxford Dictionary
Clam (noun)
A bivalve mollusk of many kinds, especially those that are edible; as, the long clam (Mya arenaria), the quahog or round clam (Venus mercenaria), the sea clam or hen clam (Spisula solidissima), and other species of the United States. The name is said to have been given originally to the Tridacna gigas, a huge East Indian bivalve.
Clam (noun)
Strong pinchers or forceps.
Clam (noun)
A kind of vise, usually of wood.
Clam (noun)
Claminess; moisture.
Clam (noun)
A crash or clangor made by ringing all the bells of a chime at once.
Clam
To clog, as with glutinous or viscous matter.
Clam
To produce, in bell ringing, a clam or clangor; to cause to clang.
Clam (verb)
To be moist or glutinous; to stick; to adhere.
Scallop (noun)
Any one of numerous species of marine bivalve mollusks of the genus Pecten and allied genera of the family Pectinidæ. 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 Jacobæus) 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.
Scallop (noun)
One of series of segments of circles joined at their extremities, forming a border like the edge or surface of a scallop shell.
Scallop (noun)
One of the shells of a scallop; also, a dish resembling a scallop shell.
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.
Scallop
To bake in scallop shells or dishes; to prepare with crumbs of bread or cracker, and bake. See Scalloped oysters, below.
Webster Dictionary
Clam (noun)
burrowing marine mollusk living on sand or mud
Clam (noun)
a piece of paper money worth one dollar
Clam (noun)
flesh of either hard-shell or soft-shell clams
Clam (verb)
gather clams, by digging in the sand by the ocean
Scallop (noun)
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.)
Scallop (noun)
edible muscle of mollusks having fan-shaped shells; served broiled or poached or in salads or cream sauces
Scallop (noun)
thin slice of meat (especially veal) usually fried or broiled
Scallop (noun)
edible marine bivalve having a fluted fan-shaped shell that swim by expelling water from the shell in a series of snapping motions
Scallop (verb)
decorate an edge with scallops;
"the dress had a scalloped skirt"
Scallop (verb)
form scallops in;
"scallop the meat"
Scallop (verb)
fish for scallops
Scallop (verb)
shape or cut in scallops;
"scallop the hem of the dress"
Princeton's WordNet
Clam Illustrations
Scallop Illustrations
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