alum - arc
- antechamber die
- antenna beam
- antenna directional pattern
- anthracene scintillation counter
- anthracite smalls
- anti-Schottky defect
- antibonding orbital
- anticarburizing paint
- anticarburizing paste
- anticathode element
- anticement
- anticorrodant
- anticorrosive agent
- anticorrosive paint
- anticorrosive pigment
- antiferromagnetic Curie temperature
- antiferromagnetic material
- antiferromagnetic resonance
- antiferromagnetism axis
- antiferromagnetism phenomenological theory
- antifriction alloy
- antifriction grease
- antifriction material
- antifriction metal
- antimonial
- antimonial arsenic
- antimonial lead
- antimonial lead ore
- antimonial nickel
- antimonial silver blende
- antimonial speiss
- antimoniferous arsenic
- antimony
- antimony ore
- antimony pentachloride
- antimony skimmings
- antimony sulphide
- antinode
- antiparallel arrangement of crystal monochromators
- antiparallel domains