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mold1 a hollow form used to give a particular shape to a soft or liquid substance that is poured into it. The material becomes hard and takes the shape of the mold. [3 definitions]
mold2 a fungus that grows on the surface of plant or animal materials such as food or leather. Some kinds of mold are fuzzy or fluffy. Penicillin is a kind of mold.
molding the act of shaping or forming something. [2 definitions]
Moldova a country of eastern Europe bordered by Romania and Ukraine. The capital of Moldova is Chisnau.
mole2 a small, permanent spot on the skin. Moles are usually brown and sometimes slightly raised.
mole3 a small animal with tiny eyes and very soft fur that lives underground in tunnels. Moles are insectivores; they are mammals that eat insects. Different kinds of moles are found in Europe, Asia, and North America. [2 definitions]
molecule the smallest unit of a substance that has all the properties of that substance. A molecule is made up of a single atom or group of atoms.
mollusk an animal in a large group of invertebrates or animals without backbones. Most kinds of mollusks live in the ocean and have soft bodies covered by a shell. Snails, clams, squid, and octopuses are examples of mollusks.
molt to shed or cast off skin, feathers, fur, or horns, and grow a new covering.
molten made liquid by very high heat.
mom (informal) mother.
moment a very short amount of time. [2 definitions]
momentary lasting only a moment.
momentous very important.
momentum strength of movement.
Mon. an abbreviation for Monday.
Monaco a tiny Mediterranean country almost completely surrounded by France. The capital of Monaco is also called Monaco.
monarch a ruler such as a king, queen, or emperor. [2 definitions]
monarchy a nation or government ruled by or in the name of a king or queen. A monarch's power is either limited by a constitution or unlimited.
monastery a community of monks, or the buildings used by such a community.
Monday the second day of the week. Monday comes between Sunday and Tuesday.