- (chemistry, physics) 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.]
- (history of science) A hypothetical particle posited by Greek philosophers as an ultimate and indivisible component of matter. [from 15th c.]
- (now generally regarded figurative) The smallest, indivisible constituent part or unit of something. [from 17th c.]
- (philosophy) In logical atomism, a fundamental fact that cannot be further broken down.
- (historical) The smallest medieval unit of time, equal to fifteen ninety-fourths of a second. [from 10th c.]
- A mote of dust in a sunbeam. [from 16th c.]
- A very small amount; a whit. [from 17th c.]
- (computing, programming, Lisp) An individual number or symbol, as opposed to a list; a scalar value. [from 20th c.]
- (mathematics, algebra) A non-zero member of a Boolean algebra that is not a union of any other elements. Or, a non-zero member of a Boolean lattice that has only zero below it. [from 20th c.]
- (mathematics, set theory) An element of a set that is not itself a set; an urelement. [from 20th c.]
- (usually capitalised as “Atom”) A member of an age group division in hockey for ten- to 11-year-olds.
- (small amount): modicum.
- Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: the ability to convert water and carbon dioxide into carbohydrates and waste oxygen using solar energy. The evolutionary precursor of photosynthesis is still under debate, and a new study sheds light. The critical component of the photosynthetic system is the water-oxidizing complex, made up of manganese atoms and a calcium atom.
- Towards the following morning, the thermometer fell to 5°; and at daylight, there was not an atom of water to be seen in any direction.
- “Doctor, tell me one word more,” said Theodore, quivering with suppressed emotion. “How do you think it will end?” / “I have hardly the faintest atom of hope,” answered this honest, earnest man.
- Now, comrades, what is the nature of this life of ours? Let us face it, our lives are miserable, laborious, and short. We are born, we are given just so much food as will keep the breath in our bodies, and those of us who are capable of it are forced to work to the last atom of our strength; and the very instant that our usefulness has come to an end we are slaughtered with hideous cruelty. No animal in England knows the meaning of happiness or leisure after he is a year old. No animal in England is free. The life of an animal is misery and slavery: that is the plain truth.
- In a Venn diagram, an atom is depicted as an area circumscribed by lines but not cut by any line.
- (music, dance) A form of lively flamenco music and dance that has many regional variations (e.g. fandango de Huelva), some of which have their own names (e.g. malagueña, granadina). [from mid 18th c.]
- A gathering for dancing; a ball.
- (figurative) An unknown entity or contraption.
- (color) A shade of red-violet.
- Coordinate term: bolero
- We skipped the light fandango / Turned cartwheels ‘cross the floor
- When Auguste Fretéllière and the painter Theodore Gentilz attended a fandango in the 1840s, the festivities took place near Military Plaza.
- What’s that fandango you’re using?
- fandango colour:
- (dance) To dance the fandango.
- (figurative) To dance, particularly with a lot of energy.