An electric charge can have either positive or negative polarity.
Clampers can be constructed in both positive and negative polarities.
The Moon's orbit speed is fixed according to its charge of negative polarity.
People of a predominantly negative polarity cannot stand to work on a "graveyard shift".
The positive fallout particles are attracted to the negative polarity, north magnetic pole.
Its location was on the side of the negative polarity from the Equator.
The word anymore is used to mean something like "nowadays" in sentences without negative polarity, another usage related to German.
Direct current of either polarity, positive or negative, can be used to weld aluminum and magnesium as well.
The spin of an entity in quantum mechanics has a polarity - positive or negative.
CG lightning can occur with both positive and negative polarity.