polarity vs separation

polarity

noun
  • The separation, alignment or orientation of something into two opposed poles. 

  • The dipole-dipole intermolecular forces between the slightly positively-charged end of one molecule to the negative end of another or the same molecule. ᵂᵖ 

  • The division of an embryo into an animal pole and a vegetal pole within a blastula. ᵂᵖ 

  • A duality that is an involution, i.e. has order two. ᵂᵖ 

  • The grammatical category of the affirmative and the negative. ᵂᵖ 

  • Any of the various ways in which power is distributed within the international system. ᵂᵖ 

  • Either of the two extremes of such attributes. 

  • Spatial differences in shape, structure, and function within a cell. ᵂᵖ 

  • A measure of the electrical potential at the ends of a circuit. ᵂᵖ 

  • An indicator of the positivity or negativity of a literal. ᵂᵖ 

  • The concept of dualism between masculine and feminine. ᵂᵖ 

  • The direction of a wave's amplitude or its being in phase or antiphase. 

separation

noun
  • An object that separates two spaces. 

  • Departure from active duty, while not necessarily leaving the service entirely. 

  • An agreement legalizing such an arrangement. 

  • The act of disuniting two or more things, or the condition of being separated. 

  • The act or condition of two or more people being separated from one another. 

  • The place at which a division occurs. 

  • An interval, gap or space that separates things or people. 

  • The act or condition of a married couple living in separate homes while remaining legally married. 

How often have the words polarity and separation occurred in a corpus of books? (source: Google Ngram Viewer )