• Webster's Revised Unabridged Dictionary
    • n Hippa (Zoöl) A genus of marine decapod crustaceans, which burrow rapidly in the sand by pushing themselves backward; -- called also bait bug. See Illust. under Anomura.
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Century Dictionary and Cyclopedia
    • n hippa The typical genus of the family Hippidæ. The Brazilian H. emerita is an example. The animals burrow in the sand. H. talpoidea is called sandbug in the United States.
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In literature:

We saw a Hippa or Village upon the Cape and some few inhabitants.
"Captain Cook's Journal During the First Voyage Round the World" by James Cook
Hippa was another Goddess, of the like antiquity, and equally obsolete.
"A New System; or, an Analysis of Antient Mythology. Volume II. (of VI.)" by Jacob Bryant
Forska hropath wark, wark, and hja ne dvath nawet as hippa and kluchtmakja.
"The Oera Linda Book" by Anonymous

In news:

These laws and regulations include Sarbanes-Oxley (SOX), the Health Insurance Portability and Accountability Act (HIPPA), Payment Card Industry Data Security Standard (PCI DSS), and others.
Former Wayne hospital employee files suit, claiming HIPPA violation.
Offering high security shredding of confidential documents, DGI is to help organizations meet existing HIPPA laws for the protection of identity and personal information.
HIPPA looks like it's going to be around for a while.
Conference provides attendees with an opportunity to discuss practical strategies for implementing the HIPPA security rule.