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

Derived forms: patent logs

Type of: log

• promissory
• promissory note
• promo
• promontory
• promote
• promoter
• promotion
• promotion system
• promotional
• promotional expense
• promotional material
• promotive
• prompt
• prompt box
• prompt copy
• promptbook
• prompter
• prompter's box
• prompting
• promptitude
• promptly
• promptness
• promulgate
• promulgated
• promulgation