simple pendulum simpleness • simple phobia · · · Info · Definitions · Characters · · simple pendulum · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) a hypothetical pendulum suspended by a weightless frictionless thread of constant length. Synonyms: simple pendulum. · · Noun Definition 1 Characters · · space U+0020 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E p latin small letter p U+0070 s latin small letter s U+0073 u latin small letter u U+0075