Definition of notation
1 : annotation, note
2a : the act, process, method, or an instance of representing by a system or set of marks, signs, figures, or charactersb : a system of characters, symbols, or abbreviated expressions used in an art or science or in mathematics or logic to express technical facts or quantities
Examples of notation in a sentence
a mathematical notation for computer programming
he had scribbled his notation so quickly I couldn't read it
Origin and Etymology of notation
Latin notation, notatio, from notare to note
First Known Use: 1584
NOTATION Defined for English Language Learners
notation
playDefinition of notation for English Language Learners

: a system of marks, signs, figures, or characters that is used to represent information
NOTATION Defined for Kids
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