American Dictionary of the English Language

ENFILA'DE, noun [Latin filum.] A line or straight passage; or the situation of a place which may be seen or scoured with shot all the length of a line, or in the direction of a line.

ENFILA'DE, verb transitive [from the noun.] To pierce, scour or rake with shot, in the direction of a line, or through the whole length of a line.

In conducting approaches at a siege, care should be taken that the trenches be not enfiladed.

In a position to enfilade the works at Fort Isle.