What is 'plenalunia' when translated from Italian to English?

"Full moon" is an English equivalent of the Italian word plenalunia.

Specifically, the word functions as a feminine noun in its singular form and as a variant form of the more standard expression, the masculine noun plenilunio. The word originates in the Latin neuter noun plenilunium. The less scientific and more modern form will be luna ("moon") piena ("full").

The respective pronunciations will be "PLE-na-LOO-nya," "PLE-nee-LOO-nyo," and "LOO-na PYEY-na" in Italian.