energy level

noun

: one of the stable states of constant energy that may be assumed by a physical system

—used especially of the quantum states of electrons in atoms and of nuclei

called also energy state

Examples of energy level in a Sentence

Recent Examples on the Web

This really had to be an exercise in finding how to do it through energy level, through voice, through the physical life of the character and the movement. —Gordon Cox, Variety, 14 May 2024

Our visit to the rest of the museum, which is housed in a former convent and showcases examples dating back to the 15th century, was brief, my desire for tile-gazing conflicting with Lulu’s flagging energy level. —Jessamine Chan, Travel + Leisure, 14 May 2024

Word History

First Known Use

1902, in the meaning defined above

Kids Definition

energy level

noun

: one of the stable states of constant energy that may be assumed by a physical system

—used especially of the states of electrons in atoms