| Definition/Meaning | Word/Phrase |
|---|
| unable for air to penetrate |
airtight
|
| intellectual ability to penetrate deeply into ideas |
astuteness
,
deepness
,
depth
,
profoundness
,
profundity
|
| 5,000 pound laser-guided bomb that can be programmed to penetrate to a given depth before exploding; used to penetrate hardened underground facilities |
Bunker Buster
,
GBU-28
,
Guided Bomb Unit-28
|
| process in which individuals (or small groups) penetrate an area (especially the military penetration of enemy positions without detection) |
infiltration
|
| trespass or penetrate hostilely |
invade
|
| protective secretion of the mucous membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium |
mucous secretion
,
mucus
|
| bomb with about 30% explosive and a casing designed to penetrate hardened targets before the explosive detonates |
penetration bomb
|
| penetrate completely |
permeate
|
| radiation having a short wavelength that is able to penetrate a solid surface |
X ray
|
