As nouns the difference between pyin and yin
is that pyin is an albuminoid constituent of pus, related to mucin, possibly a mixture of substances rather than a single body while yin is a principle in Chinese and related East Asian philosophies associated with dark, cool, female, etc. elements of the natural world.
As a numeral yin is
the number one, primarily used in Scotland and Ulster.
pyin
English
Noun
(
-)
(biochemistry, dated) An albuminoid constituent of pus, related to mucin, possibly a mixture of substances rather than a single body.
(
Webster 1913)
----
yin
English
Etymology 1
From early romanizations of Chinese , originally used in reference to shaded areas, as of a mountain or home.
(yin)
Noun
(-)
(label) A principle in Chinese and related East Asian philosophies associated with dark, cool, female, elements of the natural world.
Related terms
* (complement) yang
* (unity) yin-yang
Etymology 2
From , (m) and (m).