thinner

adj

1. (comparative, form-of)comparative form of thin: more thin

noun

1. A liquid substance used to thin the consistency of another liquid.

   “Turpentine or mineral spirits can be used as a thinner for oil-based paints.”

2. Something that thins or thins out (another thing).

   “Pomegranate juice and exercise are great natural blood thinners.”

   “The new type of mechanical thinner allowed thinning of peach blossoms to be completed earlier.”

   “A solid mane thinner is indispensable in finishing the looks of your horse.”