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

• zigzag goldenrod
• zikkurat
• zikurat
• zilch
• zill
• zillion
• Zimbabwe
• Zimbabwean
• Zimbabwean dollar
• Zimbalist
• Zimmer
• Zimmer frame
• Zinacef
• zinc
• zinc blende
• zinc cadmium sulfide
• zinc deficiency
• zinc ointment
• zinc oxide
• zinc sulfate
• zinc sulfide
• zinc sulphate
• zinc sulphide
• zinc vitriol
• zinc white