polarity-n; 3 Senses

Sense Number 1: any two things, traits in a relation of diametrical opposition

Commentary: POLARITY[+relation][+diametrical][+contrast][+opposition]
NOTE: implies -two- entities, concepts, traits in opposition to each other

Examples:
Their world view postulates a fundamental polarity between male and female.
The Cold War's clear-cut polarities no longer define political reality.
He viewed it as a balanced polarity between good and evil.

Mappings:
WordNet 3.0 Sense Numbers: 1

Sense Number 2: the state of an electromagnetic charge

Commentary: POLARITY[+state][+charge][+electromagnetic][+positive/+negative]

Examples:
The strength of the magnetic field peaks immediately after switching polarity.
It exhibits polarity when presented to a magnetic needle.
He got the polarity of the battery reversed.

Mappings:
WordNet 3.0 Sense Numbers: 2

Sense Number 3: organism's differentiation of its structure via growth

Commentary: POLARITY[+quality][+structure][+differentiated][+growth][+biological]
NOTE: refers to differentiation in organic physical structures, usually exhibited at the ends of the structure.

Examples:
The polarity of this fly is evidenced by the difference in the anterior and posterior sections of the body.
It's an undifferentiated mass of cells without noticeable polarity.

Mappings:
WordNet 0.0 Sense Numbers: 1c