Associations to the word «Atom»

Pictures for the word «Atom»


ATOM, noun. (now historical) The smallest medieval unit of time, equal to fifteen ninety-fourths of a second. [from 10th c.]
ATOM, noun. (history of science) A hypothetical particle posited by Greek philosophers as an ultimate and indivisible component of matter. [from 15th c.]
ATOM, noun. (physics) (chemistry) 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. [from 16th c.]
ATOM, noun. A mote of dust in a sunbeam. [from 16th c.]
ATOM, noun. The smallest, indivisible constituent part or unit of something. (Now generally interpreted as a figurative use of the physics sense, above.) [from 17th c.]
ATOM, noun. A very small amount (of something immaterial); a whit. [from 17th c.]
ATOM, noun. (mathematics) A non-zero member of a Boolean algebra that is not a union of any other elements. [from 20th c.]
ATOM, noun. (computing) (programming) (Lisp) An individual number or symbol, as opposed to a list. A scalar value.
ATOM BOMB, noun. Alternative form of atomic bomb
ATOM BOMBS, noun. Plural of atom bomb
ATOM COCKTAIL, noun. Alternative form of atomic cocktail
ATOM LASER, noun. A coherent state of propagating atoms, created out of a Bose-Einstein condensate.
ATOM PHYSICS, noun. (physics) (atomic) Synonym of atomic physics.
ATOM SMASHER, noun. (informal) A particle accelerator.
ATOM SMASHERS, noun. Plural of atom smasher

Dictionary definition

ATOM, noun. (physics and chemistry) the smallest component of an element having the chemical properties of the element.
ATOM, noun. (nontechnical usage) a tiny piece of anything.

Wise words

In words, as fashions, the same rule will hold; Alike fantastic, if too new, or old: Be not the first by whom the new are tried, Nor yet the last to lay the old aside.
Alexander Pope