As a verb whitened
is (whiten).
As a noun whitening is
a substance, such as a bleach, used to make something white or whiter.
whitened
English
Verb
(head)
(whiten)
whiten
English
Verb
(
en verb)
To make white or whiter; to bleach or blanch.
To become white or whiter; to bleach or blanch.
- His hair had whitened with age.
- The trees in spring whiten with blossoms.
whitening
English
Noun
(
en noun)
a substance, such as a bleach, used to make something white or whiter
the process of making something white or whiter