tanning

nouns

process in which skin pigmentation darkens as a result of exposure to ultraviolet light
is derived from
is a type of (narrower)
an organic process that takes place in the body
"respiratory activity"
beating with a whip or strap or rope as a form of punishment
making leather from rawhide
is derived from
is a type of (narrower)
the skilled practice of a practical occupation
"he learned his trade as an apprentice"