adjective sol·id–state \ˌsä-ləd-ˈstāt\

Definition of solid–state

  1. 1 :  relating to the properties, structure, or reactivity of solid material; especially :  relating to the arrangement or behavior of ions, molecules, nucleons, electrons, and holes in the crystals of a substance (such as a semiconductor) or to the effect of crystal imperfections on the properties of a solid substance solid–state physics

  2. 2a :  utilizing the electric, magnetic, or optical properties of solid materials solid–state circuitryb :  using semiconductor devices rather than electron tubes a solid–state radio

Circa 1951

First Known Use of solid–state

circa 1951

Seen and Heard

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feeling or affected by lethargy

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