cul·ver·in 
(kŭlvər-ĭn)
(kŭlvər-ĭn)n.
1. An early, crudely made musket.
2. A long heavy cannon used in the 16th and 17th centuries.
[Middle English, from Old French coulevrine, from couleuvre, snake, from Latin colubra, feminine of coluber.]
- respiratory alkalosis
- respiratory distress syndrome
- respiratory enzyme
- respiratory failure
- respiratory pigment
- respiratory quotient
- respiratory syncytial virus
- respiratory system
- respiratory therapist
- respiratory therapy
- respire
- respirometer
- respirometric
- respirometry
- respite
- resplendence
- resplendency
- resplendent
- resplendently
- respond
- respondence
- respondency
- respondent
- responder
- response