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7 Coins Puzzle	a axis	A Baffling Prediction
a direction	A horizon	A Matter of Age
A second look	a-axis	A-frame
A-frame headgear	A-horizon	A.B. Meco-Moore
aa channel	aa lava	ab
ab-	ab-plane	Abacus in Various Number Systems
abandoned mine	abandoned workings	abandonment
abaxial	Abbe jar	Abbe refractometer
Abbe theory	Abbe tube mill	ABC system
abcission zone	abdomen	Abel's reagent
Abelian group	aberration	abime
ablation	ablation area	ablation breccia
ablation cone	ablation factor	ablation forms
ablation funnel	ablation moraine	ablatograph
Abney level	abnormal anticlinorium	abnormal place
abnormal synclinorium	aboral	aboral cavity
abortive	abrade	abraded
abraser	abrasion	abrasion hardness
abrasion index	abrasive	abrasive blasting respirator
abrasive formation	abrasive ground	abrasive hardness test
abraum salts	abraumsalze	abriachanite
abscission	Absissa	absolute
absolute age	absolute atmosphere	absolute bulk strength
absolute chronology	absolute daily range	Absolute Geometry
absolute isohypse	absolute ownership	absolute permeability
absolute potential	absolute pressure	absolute roof
absolute scale	absolute temperature	absolute time
Absolute value	Absolute value of a complex number	Absolute Value of Complex Number
absolute viscosity	absolute weight strength	absorbed water
absorbent formation	absorbent ground	absorbents
absorber	Absorbtion identity	absorptiometer
absorption hygrometer	absorption loss	absorption rate
absorption spectra	absorption spectrum	absorption tower
Abundant Number	abundant vitrain	abutment
abutment load	abutment pillars	abysmal
abysmal sea	abyss	abyssal
abyssal deposit	abyssal injection	abyssal realm
abyssal theory	abyssal zone	abyssobenthic
abyssolith	abyssopelagic	acanthite
accelerated weathering test	Acceleration	accelerator

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