Hypertrophy
noun /haɪˈpɜːr.trə.fi/ — The enlargement of a tissue or organ through increased cell size
Definition
The enlargement of a tissue or organ caused by an increase in the size of its cells — typically in response to increased demand or stimulation. Muscle hypertrophy is growth in response to training; cardiac hypertrophy can be a response to disease.
Beyond the definition
Hypertrophy is what happens when you ask something of a system and it grows to meet the ask. It's the body's answer to demand — not just surviving the load but becoming bigger for it. Sometimes it's adaptation; sometimes it's overcompensation.
Origin & history
Greek: hyper (over, beyond) + trophē (nourishment). Literally: over-nourishment — the cell growing beyond its usual size in response to stimulation or demand.
Example sentences
Illustrative sentences for learning, not verified community posts or sourced quotations.
The training programme was designed specifically to trigger muscle hypertrophy.
Cardiac hypertrophy can be healthy (athlete's heart) or pathological (in response to strain).
Hypertrophy is the body's yes — the answer to sustained demand with sustained growth.
How to use it
This entry uses a noun. Follow the examples for articles and singular or plural forms; not every noun takes “a” or “an.”
Choose “Hypertrophy” when the meaning fits your context: The enlargement of a tissue or organ caused by an increase in the size of its cells — typically in response to increased demand or stimulation. Muscle hypertrophy is growth in response to training; cardiac hypertrophy can be a response to disease.
Synonyms
enlargement, growth, over-development
Antonyms
atrophy, wasting
Related words
Hypertrophy vs atrophy
Hypertrophy is the increase in cell size and growth of tissue. Atrophy is the decrease and wasting of tissue due to disuse or disease.
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Word in the Wild
See how this word appears in life, language and stories.
Illustrative sentences and imagined stories for learning — not verified sightings, interviews, or sourced quotations.
Fictional scene
Growth in Response to Effort

A runner mid-stride with conceptual overlays showing muscle and bodily effort.
The muscle overlay indicates how tissues enlarge to meet increased demand. Muscle hypertrophy occurs as a direct response to the stimulation of training, proving that the body adapts to the physical challenges it is regularly forced to confront.
Image credit: Wordspun · AI-generated conceptual illustration
Questions about this word
What does "Hypertrophy" mean?
Hypertrophy is noun meaning: The enlargement of a tissue or organ through increased cell size. The enlargement of a tissue or organ caused by an increase in the size of its cells — typically in response to increased demand or stimulation. Muscle hypertrophy is growth in response to training; cardiac hypertrophy can be a response to disease.
Where does the word "Hypertrophy" come from?
Greek: hyper (over, beyond) + trophē (nourishment). Literally: over-nourishment — the cell growing beyond its usual size in response to stimulation or demand.