thumb-sucker

noun
thumb-suck·​er | \ ˈthəm-ˌsək-ər How to pronounce thumb-sucker (audio) \

Medical Definition of thumb-sucker

: an infant or young child that habitually sucks a thumb

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Dictionary Entries Near thumb-sucker

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thumb-sucker

thumb-sucking

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Cite this Entry

“Thumb-sucker.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/thumb-sucker. Accessed 25 Jan. 2022.

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