The noun VIRGO has 3 senses: 1. (astrology) a person who is born while the sun is in Virgo. 2. a large zodiacal constellation on the equator; between Leo and Libra. 3. the sixth sign of the zodiac; the sun is in this sign from about August 23 to September 22. Familiarity information: VIRGO used as a noun is uncommon. Dictionary entry details.
A phonon is a quantum of energy of the independent oscillators in the ensemble. ... All Answers (12) phonons are a way to describe the vibrational degrees of freedom in periodic structures (lattices): the vibrational motions can be modelled as harmonic oscillators, so they can be quantized nearly in the same way.
Definition of trunnion. :  a pin or pivot on which something can be rotated or tilted; especially : either of two opposite gudgeons on which a cannon is swiveled.