To penetrate something is to go through it, to break through its surface. When you penetrate the skin with a needle, you are causing it to break open and bleed.
The soldier was able to penetrate the enemy's defenses and reach their base.
The water penetrated the concrete and ruined the floor.
verb
enter a group or organization in order to spy on the members
Synonyms:
verb
become clear or enter one's consciousness or emotions
Synonyms:
verb
spread or diffuse through
Synonyms:
verb
pass into or through, often by overcoming resistance
Synonyms:
verb
come to understand
Synonyms:
verb
insert the penis into the vagina or anus of
verb
make one's way deeper into or through
1
These spores stick to the aphid, germinate and penetrate the aphid's skin.
2
The air is keen and penetrating.
3
The violin was less penetrating.
4
Prudence demands the assumption of penetration.
5
The drug has to penetrate in to the organ.
6
The fumes will penetrate to the bottom of the silo.
7
This facilitates the penetration of the ovum and fertilisation.
8
Avoid penetration of the endplate and the anterior cortex.
9
Light penetrates to the inside of the skull of the infant.
10
I wouldn't consider it particularly penetrable.