somnambulism

noun som·nam·bu·lism \ säm-ˈnam-byə-ˌli-zəm \

Definition of somnambulism

1 : an abnormal condition of sleep in which motor acts (such as walking) are performed
2 : actions characteristic of somnambulism

somnambulist

play \säm-ˈnam-byə-list\ noun

somnambulistic

play \(ˌ)säm-ˌnam-byə-ˈli-stik\ adjective

somnambulistically

play \(ˌ)säm-ˌnam-byə-ˈli-sti-k(ə-)lē\ adverb

Recent Examples of somnambulism from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'somnambulism.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of somnambulism

1797

in the meaning defined at sense 1

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Medical Dictionary

somnambulism

noun som·nam·bu·lism \ säm-ˈnam-byə-ˌliz-əm \

medical Definition of somnambulism

1 : an abnormal condition of sleep in which motor acts (as walking) are performed
2 : actions characteristic of somnambulism

somnambulistic

play \(ˌ)säm-ˌnam-byə-ˈlis-tik\ adjective

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fullness to the point of excess

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