HUMIC ACID

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A dark brown humic substance that is soluble in water only at pH values greater than 2

Example:

the half-life of humic acid is measured in centuries

Classified under:

Nouns denoting substances

Hypernyms ("humic acid" is a kind of...):

humic substance (an organic residue of decaying organic matter)

Credits