Atom

Noun

 * 1) The smallest, indivisible constituent part or unit of something.
 * 2)  The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.
 * 3)  A non-zero member of a Boolean algebra that is not a union of any other elements.
 * 4)  A theoretical particle of matter, imagined to be incapable of further division; the smallest possible unit of substance.
 * 5)  The smallest medieval unit of time, equal to fifteen ninety-fourths of a second.

Adjectives for Atom
primordial; golden; pungent; intrusive; paltry; jarring; meditative; quenchless; homogeneous; gaseous; tormented; intelligent; throbbing; phosphorescent.

Thesaurus
ace; acid; acidity; agent; air; alkali; alkalinity; alloisomer; anion; antacid; atomic model; atomic particles; atoms; base; biochemical; bit; brute matter; building block; cation; chemical; chemical element; chromoisomer; component; compound; constituent; copolymer; cubical atom; dab; dash; dimer; dole; dot; dram; dribble; driblet; dwarf; dyad; earth; electron; element; elementary particle; elementary unit; fabric; farthing; fire; fleck; flyspeck; fragment; fundamental particle; gobbet; grain; granule; groat; hair; handful; heavy chemicals; heptad; hexad; high polymer; homopolymer; hydracid; hyle; hypostasis; inorganic chemical; ion; iota; isobar; isomer; isotopic isobar; jot; labeled atom; little; little bit; lota; macromolecule; material; material world; materiality; matter; medium; meson; metamer; minim; minimum; minutiae; mite; modicum; molecule; monad; monomer; mote; natural world; nature; neutral atom; neutralizer; no other; nonacid; none else; normal atom; nothing else; nought beside; nuclear atom; nuclear isomer; nuclear particle; nuclide; nutshell; octad; one; one and only; organic chemical; ounce; oxyacid; particle; pebble; pentad; physical world; pinch; pittance; planetary shell; plenum; point; polymer; proton; pseudoisomer; quark; radiation atom; radical; reagent; recoil atom; scruple; shade; shell; smack; smidgen; smitch; soupcon; speck; spice; spoonful; spot; stripped atom; stuff; subshell; substance; substratum; suggestion; sulfacid; suspicion; tagged atom; tangible; tetrad; the four elements; thimbleful; tincture; tinge; tiny bit; tittle; touch; trace; tracer; tracer atom; triad; trifling amount; trimer; trivia; unit; unit of being; valence shell; water; whit

Etymology
From atome: from  atomus: from  ἄτομος: from ἀ-: + τέμνω:.

Synonyms

 * See also Thesaurus:atom
 * See also Thesaurus:particle

Related terms

 * atomic