1. A cigar-shaped log with rotary fins that measure the ship's speed
   - patent log, screw log

Derived forms: taffrail logs

Type of: log

• sky marshal
• sky pilot
• sky wave
• sky-blue
• sky-high
• skybox
• skycap
• skydive
• skydiver
• skydiving
• Skye
• Skye terrier
• skyhook
• skyjack
• skyjacker
• Skylab
• skylark
• skylight
• skyline
• skype
• skyrocket
• skysail
• skyscraper
• skywalk
• skyward