snowflake
noun
[ ˈsnəʊfleɪk ]
• a flake of snow, especially a feathery ice crystal, typically displaying delicate sixfold symmetry.
• an overly sensitive or easily offended person, or one who believes they are entitled to special treatment on account of their supposedly unique characteristics.
• "these little snowflakes will soon discover that life doesn't come with trigger warnings"
• a white-flowered Eurasian plant related to and resembling the snowdrop, typically blooming in the summer or autumn.