Precision is being exact and definite. Great precision, with precision, precision engineering.
In measurement, precision and accuracy are different things: precision is how closely repeated measurements agree, and accuracy is how close they are to the truth — a set of readings can be precise and consistently wrong. That distinction is the single most useful thing about the word. Precision engineering means working to very fine tolerances. Note precise; and that false precision, quoting a figure to more decimal places than the data supports, is a common way of misleading.
1nounprecisionBeing exact and definite.
“The surgeon cut with great precision, avoiding the nerves.”
precision is an exactness.
Latin praecisio means a cutting off — prae plus caedere, to cut, the same verb as in concise and decide. Precision is cutting away everything that is not exactly the thing.
Proto-Indo-European
*preh₂-
Middle French
precision
English, today
precision
From Middle French precision. Equivalent to precise + ion.
Etymology from Wiktionary, CC BY-SA