sour substance

ACID
WordClue
FARTraspberry tart
RAINtropical or acid
MANNAedible substance described in Bible
MATTERsubstance
ASPIRINacetylsalicylic acid
BATTERYgalvanic or lead-acid
MATERIALelement, substance
VITAMINEascorbic acid
HEARTBURNacid indigestion
IBUPROFENisobutylphenyl propionic acid
PROPELLANTchemical substance
DECONTAMINATIONremoval of a substance
GAZPACHOsoup served cold from Spain
WELLSPRINGsource