Standard Lemma guide

semiclassical

adj · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • CMU ARPABET: S EH2 M IY0 K L AE1 S IH0 K AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: S EH2 M IH0 K L AE1 S IH0 K AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 3: S EH2 M AY0 K L AE1 S IH0 K AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

That is classical but has broad, popular appeal.

Definition source: English Wiktionary via Wiktextract

Topics: entertainment, lifestyle, music

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Of, pertaining to, or being a theory that describes a physical system by dividing it into two parts, one described by classical physics and the other by either relativistic or quantum mechanical physics.

Definition source: English Wiktionary via Wiktextract

Topics: natural-sciences, physical-sciences, physics

Examples

  • 2020, Bei-Lok B. Hu, Enric Verdaguer, Semiclassical and Stochastic Gravity, Cambridge University Press, page 337, Whereas semiclassical gravity is based on the semiclassical Einstein equation with sources given by the expectation value of the stress-energy tensor of quantum fields, stochastic semiclassical gravity is based on the Einstein—Langevin equation, which has in addition sources due to the noise kernel.
  • 2024, Chaoyuan Zhu, Semiclassical Nonadiabatic Molecular Dynamics, Springer, page 109, Of course, the main problem with such semiclassical treatment is to find suitable coordinate[s] in which [a] multidimensional scattering or reaction Schrödinger equation has to be expanded into the certain one-dimensional many-state coupled Schrödinger equations like Equation 4.219.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *sem- Proto-Indo-European *sēmi Latin sēmi-bor. English semi- Proto-Indo-European *kelh1-der. Proto-Italic *klāssis Latin classis Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icus Latin classicuslbor. French classiquebor. English classic Proto-Indo-European *h2el-der.? Proto-Italic *-ālis Latin -ālisbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al English -al English classical English semiclassical From semi- + classical.

Across languages

Translations

2 source translations are retained for this English entry.

  • Italian: semiclassico — music
  • Italian: semiclassico — physics