rational

Meanings

Plural: rationals

Noun

an integer or a fraction
A rational number: a number that can be expressed as the quotient of two integers.
The breastplate worn by Israelite high priests.

Adjective

consistent with or based on or using reason
- "rational behavior"
- "a process of rational inference"
- "rational thought"
capable of being expressed as a quotient of integers
- "rational numbers"

Adjective Satellite

of or associated with or requiring the use of the mind
- "the triumph of the rational over the animal side of man"
having its source in or being guided by the intellect (as distinguished from experience or emotion)
- "a rational analysis"

Adj

Capable of reasoning.
Logically sound; not self-contradictory or otherwise absurd.
Healthy or balanced intellectually; exhibiting reasonableness.
Comprising, or expressible as, a ratio
Of a number, capable of being expressed as the ratio of two integers.
Comprising, or expressible as, a ratio
Of an algebraic expression in indeterminates, or more generally a function: capable of being expressed as the ratio of two polynomials.
Comprising, or expressible as, a ratio
Of a variety: (informally) geometrically simple almost everywhere; (formally) birationally equivalent to projective space
Comprising, or expressible as, a ratio
Of a function between varieties: acting as a morphism on an open subset of its domain.
Comprising, or expressible as, a ratio
Of a point on an algebraic variety over a field: whose coordinates belong to the field in question (in contrast to those points of the variety which are only defined over the algebraic closure of the base field).
Expressing the type, structure, relations, and reactions of a compound; graphic; said of formulae.
Expressing a physical object.

Origin / Etymology

From Old French rationel, rational, from Latin rationalis (“of or belonging to reason, rational, reasonable; having a ratio”), from ratio (“reason; calculation”).

Synonyms

intellectual, noetic, rational number

Antonyms

absurd, arational, arbitrary, irrational, non-rational, nonsensical

Scrabble Score: 8

rational is a valid Scrabble (US) TWL word
rational is a valid Scrabble Word in Merriam-Webster MW Dictionary
rational is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 10

rational is a valid Words With Friends word