patent log patent light • patently · · · Info · Definitions · Synonyms · Characters · · patent log · · Text Common · · Latin · · Scripts 10 · · 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 · · · screw log · · Synonym 1 taffrail log · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 t latin small letter t U+0074