Meaning of “penetration” in the English Dictionary

"penetration" in British English

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penetrationnoun [ U ]

uk /ˌpen.ɪˈtreɪ.ʃən/ us /ˌpen.əˈtreɪ.ʃən/

penetration noun [ U ] (MOVEMENT INTO)

a movement into or through something or someone:

Sunscreens can help reduce the penetration of ultraviolet rays into the skin.
The company is trying to increase its penetration of the market.

the act of a man putting his penis into his partner's body during sex

(Definition of “penetration” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"penetration" in Business English

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penetrationnoun [ U ]

uk /ˌpenɪˈtreɪʃən/ us MARKETING, COMMERCE

a level of sales, or of increase in sales, of a product or service in a particular area:

broadband/internet/mobile-phone penetration Broadband penetration is set to soar in Eastern European markets.

(Definition of “penetration” from the Cambridge Business English Dictionary © Cambridge University Press)