beryllium berylliosis • berylloid · · · Info · Definitions · Synonyms · Characters · · beryllium · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a light strong brittle grey toxic bivalent metallic element. Synonyms: Be, glucinium, atomic number 4. · · Noun Definition 1 Synonyms · · · be · · Synonym 1 glucinium · · Synonym 2 atomic number 4 · · Synonym 3 Characters · · b latin small letter b U+0062 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 r latin small letter r U+0072 u latin small letter u U+0075 y latin small letter y U+0079