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n. The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms; a group of like or different atoms held together by chemical forces.

n. A small particle; a tiny bit.

n. The smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by chemical bonds.

n. A tiny amount.

n. One of the very small invisible particles of which all ordinary matter is supposed to consist.

n. The smallest part of any substance which possesses the characteristic properties and qualities of that substance, and which can exist alone in a free state.

n. A group of atoms so united and combined by chemical affinity that they form a complete, integrated whole, being the smallest portion of any particular compound that can exist in a free state. Cf. Atom.

n. The smallest mass of any substance which is capable of existing in a separate form — that is, the smallest part into which the substance can be divided without destroying its chemical character (identity).

n.

n. A very small particle or bit of something; a particle; an atom.

n. In ornithology, the tread or cicatricula of a fecundated ovum.

n. (nontechnical usage) a tiny piece of anything

n. (physics and chemistry) the simplest structural unit of an element or compound

"Each protein molecule is made up of several thousand atoms."

constituent molecule    inactive molecules    integrant molecule    organic molecules    double molecule    active molecules    proteid molecule    atom   

molecular   

atom   

particle    monad    dyad    triad    tetrad    pentad    hexad    heptad    octad   

atom    protein    compound    concentration    component    ion    cell    substance    structure    Gene