mercow

Etymology
From, modelled after.

Noun

 * 1) Any of several marine mammals of the order Sirenia, including the manatee and dugong; sea-cow.
 * 2) * 2012, QI: quite interesting facts about mythical creatures - Telegraph:
 * Mercow. The description of pretty mermaids frolicking in the water is so widespread that it was thought there must be a real creature lurking behind the legends.
 * Mercow. The description of pretty mermaids frolicking in the water is so widespread that it was thought there must be a real creature lurking behind the legends.