1
: belonging to, used in, or suitable to courts of judicature or to public discussion and debate
a lawyer's forensic skills
2
: argumentative, rhetorical
forensic eloquence
3
: relating to or dealing with the application of scientific knowledge to legal problems
forensic medicine
forensic science
forensic pathologist
forensic experts

forensic

2 of 2

noun

1
: an argumentative exercise
2
forensics fə-ˈren(t)-siks How to pronounce forensic (audio)
-ˈren-ziks
plural in form but singular or plural in construction : the art or study of argumentative discourse
3
forensics plural in form but singular or plural in construction : the application of scientific knowledge to legal problems
especially : scientific analysis of physical evidence (as from a crime scene)

Did you know?

The noun forensic, meaning “an argumentative exercise” derives from the adjective forensic, whose earliest meaning in English is “belonging to, used in, or suitable to courts or to public discussion and debate.” The English word was derived from a Latin word forensic meaning “of the market place or forum, public,” which in turn comes from the Latin word forum, meaning “market place, forum.”

Examples of forensic in a Sentence

Recent Examples on the Web
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Adjective
In August 2025, Scott’s legal team, along with the LAIP, filed a habeas corpus petition alleging a wrongful conviction based on flawed forensic evidence. Declan Gallagher, Entertainment Weekly, 18 July 2026 Her character Georgie strikes up a romance with former forensic investigator Bill Avery (Jack Wagner) and in the following season, Georgie helps Bill investigate a mapmaker involved with Pioneer Electric. Edward Segarra, USA Today, 17 July 2026
Noun
Various aspects of police work, such as investigations, forensics and special response, are covered in the program. Michelle Mullins, Chicago Tribune, 16 July 2026 In the opinion, justices upheld a lower court’s decision to toss out Duncan’s 1998 conviction for killing his former girlfriend’s toddler, Haley Oliveaux, citing flawed forensics practices used to convict him. Richard A. Webster, ProPublica, 29 June 2026 See All Example Sentences for forensic

Word History

Etymology

Adjective and Noun

Latin forensis public, forensic, from forum forum

First Known Use

Adjective

1659, in the meaning defined at sense 1

Noun

1844, in the meaning defined at sense 2

Time Traveler
The first known use of forensic was in 1659

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Cite this Entry

“Forensic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/forensic. Accessed 23 Jul. 2026.

Kids Definition

forensic

adjective
fo·​ren·​sic
fə-ˈren(t)-sik
-ˈren-zik
: belonging to, used in, or suitable to courts of law or to public discussion and debate
forensically
-si-k(ə-)lē
-zi-
adverb
Etymology

Adjective

from Latin forensis "of a forum, public," from forum "market, place of public discussion, court"

Medical Definition

: relating to or dealing with the application of scientific knowledge to legal problems especially in regard to criminal evidence
a forensic pathologist
forensic experts
… a forensic technique of DNA analysis allows for the determination of whether a subject with a specific genetic profile has contributed to aggregate genomic data.Kathy L. Hudson, The New England Journal of Medicine

Legal Definition

forensic

adjective
1
: belonging to, used in, or suitable to the courts or to public discussion and debate
2
: relating to or dealing with the application of scientific knowledge (as of medicine or linguistics) to legal problems
forensic pathology
forensic experts
forensically adverb
Etymology

Adjective

Latin forensis public, forensic, from forum forum

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