Eclipsed imp. & p. p. : of Eclipse

Example:
How did sound recording avoid being Eclipsed by the dawn of radio?

Taxonomy
eclipsed conformation, free encyclopedia, staggered conformation, interaction, rotation, hydrogen atoms, eclipse, ethane molecule, search, meanings, open chain, sp3, conformational energy, origins, carbon-carbon bond, energy barrier, carbon bond, kJ.

Defination from the web:
eclipsed conformation is a chemical conformation that exists in any open chain single chemical bond connecting two sp3 hybridised ... hindrance, but its origins sometimes actually lie in hyperconjugation (as when the eclipsing interaction is of two hydrogen atoms) ...