patent log

1. 1.

   a cigar-shaped log with rotary fins that measure the ship's speed

   Synonymsscrew logtaffrail log

   Broaderlog

Questions about patent log

What does patent log mean?

patent log means "a cigar-shaped log with rotary fins that measure the ship's speed".

What is another word for patent log?

Close synonyms include screw log, taffrail log. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is patent log a common word?

patent log is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.