Ps  search
PS waves  search
USEPS-waves
PS-waves  search
BTelastic waves
 .seismic waves
 ..body waves
 ...PS-waves
UFPS waves
RTseismology
 waves
 P-waves
 S-waves
SNAdded to Thesaurus in 1989.
psammite  search
USEsandstone
psammitic texture  search
USEarenaceous texture
pseudo-karst  search
USEpseudokarst
pseudo-single domains  search
BTmagnetic domains
 .pseudo-single domains
SNAdded to Thesaurus in 1981.
pseudobrookite  search
BToxides
 .pseudobrookite
RTarmalcolite
 ferropseudobrookite
pseudogalena  search
USEsphalerite
Pseudogleys  search
BTsoils
 .Pseudogleys
RTsoil group
 Gleys
pseudokarst  search
UFpseudo-karst
RTgeomorphology
 topography
 karst
 thermokarst
SNAdded to Thesaurus in 1985.
pseudoleucite  search
BTsilicates
 .framework silicates
 ..pseudoleucite
Pseudomonas  search
BTbacteria
 .Pseudomonas
RTmicrofossils
 biodegradation
 bioremediation
SNSpecies. For paleontologic studies, index microfossils.
pseudomorphism  search
UFpseudomorphs
RTminerals
SNBefore 1976, also search replacement.
pseudomorphs  search
USEpseudomorphism
pseudotachylite  search
BTmetamorphic rocks
 .mylonites
 ..pseudotachylite
Pseudotsuga  search
BTPlantae
 .Spermatophyta
 ..Gymnospermae
 ...Coniferales
 ....Pseudotsuga
SNGenus.
Psiloceratida  search
BTInvertebrata
 .Mollusca
 ..Cephalopoda
 ...Tetrabranchiata
 ....Ammonoidea
 .....Psiloceratida
psilomelane  search
BToxides
 .psilomelane
RTmanganese minerals
 manganese oxides
Psilophytales  search
USEPsilopsida
Psilopsida  search
BTPlantae
 .Pteridophyta
 ..Psilopsida
UFPsilophytales
RTvascular taxa
SNIncluding Psilophytales.
Pskem Rang  search
Pskem Range  search
BTAsia
 .Pskem Range
BTCommonwealth of Independent States
 .Pskem Range
RTKazakhstan
 Kyrgyzstan
SNOutlier of Kirghiz Range. This term has multiple hierarchies. Indexed with former Soviet republics as applicable.
Pskov Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Pskov Russian Federation
BTEurope
 .Pskov Russian Federation
SNOblast including city 155 miles SW of Saint Petersburg in W Russian Federation. Before 1993, Pskov Russian Republic was also used. This term has multiple hierarchies.
Psocoptera  search
BTInvertebrata
 .Arthropoda
 ..Mandibulata
 ...Insecta
 ....Pterygota
 .....Neoptera
 ......Exopterygota
 .......Psocoptera
UFPsocopteroida
SNOrder.
Psocopteroida  search
USEPsocoptera