fortification
- n. [军] 设防；[军] 防御工事；加强；配方
英英释意
- 1. defensive structure consisting of walls or mounds built around a stronghold to strengthen it
- 2. the art or science of strengthening defenses
- 3. the addition of an ingredient for the purpose of enrichment (as the addition of alcohol to wine or the addition of vitamins to food)