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

• asana
• Asanga
• ASAP
• Asaph Hall
• asarabacca
• Asarh
• Asarum
• Asarum canadense
• Asarum europaeum
• Asarum shuttleworthii
• Asarum virginicum
• ASAT
• Asbat al-Ansar
• asbestos
• asbestos abatement
• asbestosis
• ASBO
• Ascaphidae
• Ascaphus
• Ascaphus trui
• ascariasis
• ascarid
• Ascaridae
• Ascaridia
• Ascaridia galli