plural noun

the innermost parts or recesses of a place or thing.
the most private or secret things.

Origin of penetralia

1660–70; < Latin, noun use of neuter plural of penetrālis inner, equivalent to penetr(āre) to penetrate + -ālis -al1
Related formspen·e·tra·li·an, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for penetralia

Historical Examples of penetralia

British Dictionary definitions for penetralia


pl n

the innermost parts
secret matters
Derived Formspenetralian, adjective

Word Origin for penetralia

C17: from Latin, from penetrālis inner, from penetrāre to penetrate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012