(lathers, lathering, lathered)
1.
A lather is a white mass of bubbles which is produced by mixing a substance such as soap or washing powder with water.
...the sort of water that easily makes a lather with soap...
He wiped off the remains of the lather with a towel.
N-SING
2.
When a substance such as soap or washing powder lathers, it produces a white mass of bubbles because it has been mixed with water.
The shampoo lathers and foams so much it's very hard to rinse it all out.
VERB: V
3.
If you lather something, you rub a substance such as soap or washing powder on it until a lather is produced, in order to clean it.
Lather your hair as normal...
For super-soft skin, lather on a light body lotion before you bathe.
VERB: V n, V n with adv, also V n prep