false positive

noun — 2 senses

false positive

noun
1

A result of a test that shows as present something that is absent.

  • A false positive from a cancer screening test will unnecessarily frighten a healthy person; a false negative will deprive them of timely treatment.
  • A false positive can be returned on a password checking algorithm when the password is tested against a dictionary but the password does not contain a dictionary word.
2

Mathematics, Sciences, Statistics A type I error.

Synonyms
FP, false alarm
Antonyms
false negative, type II error

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.