[hwis-uh
l-bloh-er, wis-] 
| a person who informs on another or makes public disclosure of corruption or wrongdoing. |
| whis·tle·blow·er or whis·tle-blow·er or whistle blower (hwĭs'əl-blō'ər, wĭs'-) n. One who reveals wrongdoing within an organization to the public or to those in positions of authority: "The Pentagon's most famous whistleblower is . . . hoping to get another chance to search for government waste" (Washington Post). whis'tle-blow'ing n. |
whistle-blower
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Whistle Blower
An employee who has inside knowledge of illegal activities occurring within his or her organization and reports these to the public.
Investopedia Commentary
Although whistle blowers are protected under federal law from employer retaliation, there have been cases where punishment for whistle blowing has occurred.
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