obsolete negative regulation of histone acetylation (obsolete GO:0035067)
down regulation of histone acetylation
exact
down-regulation of histone acetylation
exact
downregulation of histone acetylation
exact
inhibition of histone acetylation
narrow
OBSOLETE. Any process that stops, prevents, or reduces the frequency, rate or extent of the addition of an acetyl group to a histone protein.