penetration meaning
EN
[pɛnɪˈtɹeɪʃ(ə)n] [-eɪʃən] WPenetration
- Penetration may refer to:
- Market penetration or brand penetration, the degree to which a product or service is known and/or used
- Penetration depth of light or any electromagnetic radiation.
- Penetration (telecommunications)
- Penetrating trauma
- Penetration (warfare)
- Penetration (weapons), the ability to pierce the target's armor or other protection
- Penetration (firestop), an opening in a wall or floor assembly required to have a fire-resistance rating, for the purpose of accommodating the passage of a mechanical, electrical, or structural penetrant
FR pénétration 
- NounPLpenetrationsPREpene-SUF-ation
- The act of penetrating something.
- Any penetration, however slight, is sufficient to complete the offense.
- Specifically, the insertion of the penis (or similar object) during sexual intercourse.
- The act of penetrating a given situation with the mind or faculties; perception, discernment.
- (blackjack) A number or fraction that represents how many cards/decks will be dealt before shuffling, in contrast to the total number of cards/decks in play.
- The act of penetrating something.
Definition of penetration in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Nouns
Source: Wiktionary
Grammatically, this word "penetration" is a noun, more specifically, a countable noun.