nonpolar
This term is used almost exclusively within the domains of chemistry and physics to describe a specific state of electrical neutrality. It conveys a sense of symmetry and balance, where the absence of a dipole moment means the molecule does not have a positive end and a negative end. This lack of charge makes such substances hydrophobic, meaning they repel water.
In practical application, the word is frequently paired with "covalent" to specify the type of chemical bonding involved. It is a technical descriptor rather than a general adjective, appearing in academic textbooks, laboratory reports, and scientific journals to explain why certain substances, like fats and oils, do not dissolve in polar solvents.
Meanings
Examples
Oil is nonpolar.
Historically, identifying nonpolar solvents revolutionized early organic synthesis.