taffrail log taffrail • taffy · · · Info · Definitions · Synonyms · Characters · · taffrail log · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) a cigar-shaped log with rotary fins that measure the ship's speed. Synonyms: patent log, screw log, taffrail log. · · Noun Definition 1 Synonyms · · · patent log · · Synonym 1 screw log · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 f latin small letter f U+0066 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074