We don't have synonyms for gallic acids yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are gallic acid, maleic acids and malic acids.
(n) :
(organic chemistry) a phenolic carboxylic acid, 3,4,5-trihydroxybenzoic acid, found in galls, tea, the bark of some trees etc; a constituent of tannin
(n) :
(inorganic chemistry) the supposed acid H₃GaO₃, the acid form of the amphoteric gallium hydroxide Ga(OH)₃, known only as alkali metal salts
(n) :
(organic chemistry) a phenolic carboxylic acid, 3,4,5-trihydroxybenzoic acid, found in galls, tea, the bark of some trees etc; a constituent of tannin
(n) :
(inorganic chemistry) the supposed acid H₃GaO₃, the acid form of the amphoteric gallium hydroxide Ga(OH)₃, known only as alkali metal salts