Freebase(0.00 / 0 votes)Rate this definition: Portable Network Graphics. Portable Network Graphics is a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format, and is the most used lossless image compression format on the World Wide Web.
Definition of menopause. 1 : the natural cessation of menstruation that usually occurs between the ages of 45 and 55; also : the period during which such cessation occurs âcalled also climacteric â compare perimenopause. 2 : cessation of menstruation from other than natural causes.
Now, as far as menopause is concerned, menopause is simply the cessation of some hormone production within a body, usually due to age. Since most trans women are on an HRT regimen, they wouldn't experience a cessation of hormones in their endocrine system. If a trans woman were to stop HRT, she may find herself experiencing something very similar to menopause, though.