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polysomnogram

American  
[pol-ee-som-nuh-gram] / ˌpɒl iˈsɒm nəˌgræm /

noun

  1. a record of a person's sleep pattern, breathing, heart activity, and limb movements during sleep. PSG


Other Word Forms

Etymology

Origin of polysomnogram

poly- + Latin somn ( um ) sleep + -o- + -gram 1; for sense of poly-, cf. polygraph

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The clinical standard for measuring slumber is an in-lab overnight study, or a polysomnogram.

From The Wall Street Journal Jun. 7, 2026

While my polysomnogram showed just 28 minutes of deep sleep, each device said I got over an hour.

From The Wall Street Journal Jun. 7, 2026

This may not detect mild apnea and is prone to false negatives, so if results are negative but your doctor strongly suspects apnea, you’ll need a polysomnogram.

From Washington Post Jun. 30, 2016

If a sleep-disrupting problem is suspected, an overnight sleep lab polysomnogram may be in order.

From Washington Post Jun. 30, 2016

Doctors rely on results from a sleep study, or polysomnogram, done while you're hooked up to electrodes in a sleep lab.

From US News Jun. 16, 2015

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