| Main Entry: | exfiltrate |
| Part of Speech: | v |
| Definition: | to withdraw troops surreptitiously, esp. from a dangerous position |
| Etymology: | opposite of infiltrate, back formation of exfiltration 'filtering out' |
| to run away hurriedly; flee. |
| to expurgate (a written work) by removing or modifying passages considered vulgar or objectionable. |