rigor mortis: meaning, definition, pronunciation and examples
LowTechnical (medical/forensic), Literary, Figurative
Quick answer
What does “rigor mortis” mean?
The stiffening of the muscles that occurs after death, usually beginning a few hours after the heart stops.
Audio
Pronunciation
Definition
Meaning and Definition
The stiffening of the muscles that occurs after death, usually beginning a few hours after the heart stops.
A state of immobility or inflexibility, often used metaphorically to describe institutions, processes, or systems that have become rigid and unresponsive.
Dialectal Variation
British vs American Usage
Differences
No difference in meaning or spelling. British English is more likely to use the figurative extension in journalistic or literary contexts.
Connotations
Primarily medical/forensic. Figurative use carries a negative connotation of decay and dysfunction.
Frequency
Low frequency in general use, but standard in medical, forensic, and crime writing contexts in both regions.
Grammar
How to Use “rigor mortis” in a Sentence
Rigor mortis + verb (sets in, begins, passes)Verb + rigor mortis (examine for, determine from)Vocabulary
Collocations
Examples
Examples of “rigor mortis” in a Sentence
verb
British English
- The body had begun to rigor mortis, aiding the pathologist's estimation.
- It takes several hours for a body to fully rigor mortis.
American English
- The muscles will rigor mortis within the next few hours.
- The coroner noted the body had rigor mortised.
adverb
British English
- The arm was fixed rigor-mortis-like in position.
- The jaw was clenched almost rigor-mortisly.
American English
- The fingers were curled rigor-mortis-tight.
- He stood, frozen rigor-mortis-stiff with fear.
adjective
British English
- The rigor-mortis stage is crucial for timeline reconstruction.
- They observed the rigor-mortis effects on the limbs.
American English
- A rigor-mortis condition had set in by the time of discovery.
- The rigor-mortis process follows a predictable pattern.
Usage
Meaning in Context
Business
Metaphorical use to describe organisational paralysis or resistance to change (e.g., 'The bureaucracy had succumbed to rigor mortis.').
Academic
Standard term in forensic science, medicine, biology, and history (e.g., studying time of death).
Everyday
Rare. May appear in crime novels, TV shows, or news reports about investigations.
Technical
Precise medical/forensic term for the biochemical process of muscle contraction after death, used to estimate time of death.
Vocabulary
Synonyms of “rigor mortis”
Strong
Neutral
Weak
Vocabulary
Antonyms of “rigor mortis”
Watch out
Common Mistakes When Using “rigor mortis”
- Misspelling as 'rigor mortise' or 'rigormortis'. Incorrectly using it as a countable noun (e.g., 'a rigor mortis'). Using it to describe living stiffness (e.g., after exercise).
FAQ
Frequently Asked Questions
No, not literally. It is exclusively a post-mortem condition. Figuratively, it can describe a living system (e.g., an organisation) that has become rigid and lifeless.
No. Rigor mortis is muscle stiffening. Livor mortis (lividity) is the settling of blood in the lower parts of the body, causing a purplish discolouration.
In British English, it's /ˈrɪɡə/, with a soft 'g' as in 'rig'. In American English, it's /ˈrɪɡər/, with a clearer 'r' sound at the end.
It is always 'rigor mortis', even in British English, as it is a fixed Latin term. The British spelling 'rigour' is used for the separate word meaning 'strictness'.
The stiffening of the muscles that occurs after death, usually beginning a few hours after the heart stops.
Rigor mortis is usually technical (medical/forensic), literary, figurative in register.
Phrases
Idioms & Phrases
- “[Figurative] The company was suffering from corporate rigor mortis, unable to adapt to the new market.”
Learning
Memory Aids
Mnemonic
Think: 'RIGID after death' – both words start with 'RI' and describe stiffness.
Conceptual Metaphor
DEATH IS STIFFNESS / LACK OF PROGRESS IS DEATH
Practice
Quiz
In which context is the term 'rigor mortis' used NON-LITERALLY?