aa  search
USEaa lava
aa lava  search
BTlava
 .aa lava
UFaa
RTpahoehoe
 volcanism
AABW  search
USEAntarctic Bottom Water
Aachen Germany  search
BTEurope
 .Central Europe
 ..Germany
 ...North Rhine-Westphalia Germany
 ....Aachen Germany
SNCity near the intersection of the Belgian and Dutch borders.
Aaland  search
USEAland
Aalenian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Jurassic
 ....Middle Jurassic
 .....Aalenian
RTLower Jurassic
 Broom Formation
 Dogger
 Etive Formation
 Rannoch Formation
SNEurope.
AAPG  search
UFAmerican Association of Petroleum Geologists
RTassociations
SNAcronym. Added to Thesaurus in 1985.
Aar Massif  search
BTEurope
 .Central Europe
 ..Switzerland
 ...Aar Massif
Aar Valley  search
BTEurope
 .Central Europe
 ..Switzerland
 ...Aar Valley
UFAare Valley
SNRiver valley in central and N Switzerland.
Aare Valley  search
USEAar Valley
Aargau Switzerland  search
BTEurope
 .Central Europe
 ..Switzerland
 ...Aargau Switzerland
SNCanton in N Switzerland.