reciprocal defence
(US reciprocal defense) Fortification
noun
A type of flanking defence found in permanent fortifications.
Origin
Mid 18th century.
- introductory
- introgression
- introgressive
- introit
- introject
- introjection
- intromission
- intromittent organ
- intron
- intronic
- introrse
- introscan
- introspect
- introspection
- introspective
- introspectively
- introspectiveness
- introversion
- introversive
- introvert
- introverted
- introvertive
- intrude
- intruder
- intruder alarm