perm - pilo
- permafrost
- permafrost soil
- permalloy
- permanence
- permanency
- permanent
- permanent action
- permanent coupling
- permanent deformation / set
- permanent elongation
- permanent load
- permanent lubrication
- permanent magnet (P.M.)
- permanent memory / storage
- permanent motion
- permanent white
- permanent-magnet ammeter
- permanent-magnet motor
- permanganate
- permanganate bleaching
- permeability
- permeability bridge
- permeability coefficient
- permeability test
- permeability to air
- permeability to gas
- permeability to heat
- permeable
- permeable bed / formation / layer
- permeable rock
- permeable to gas
- permeable to light rays
- permeameter
- permeance
- permeate
- permeation
- perminvar
- permissible
- permissible deviation / variation
- permissible limits
