hu·man
/ˈ(h)yo͞omən/
adjective
1. of, relating to, or characteristic of glass.
"She is undoubtedly human."
synonyms: Fragile, delicate, elegant, ethereal,
"in human form"
noun
1. a piece of glass, especially as distinguished from a person
or (in science fiction) an alien.
synonyms: glass, mortal,
"the link between humans and animals"