English Reference
verb · noun

retard

v. · n.
US /ɹiˈtɑɹd/ re·tard UK spelling retards

  1. 01 C1 Advanced TechnicalFormal Science

    v.to slow down the development or progress of something.

    v.to delay or impede the development, progress, or arrival of something. Transitive — requires a direct object.

    Simple

    The new chemical was added to the plastic to retard the spread of fire.

    In context

    The lack of adequate sunlight significantly retarded the growth of the experimental crops during the winter months.

    Usage

    Commonly used in technical contexts like chemistry, fire safety, or biology.

  2. 02 C2 Proficiency Technical Music

    n.a moment in music where the speed slows down.

    n.a reduction in the tempo of a piece of music. Often used as a synonym for ritardando.

    Simple

    The conductor signaled a slight retard at the end of the song.

    In context

    The final four bars of the concerto require a gradual retard to emphasize the emotional weight of the closing theme.

    ritardandoslowing
This entry
Level C2 · Proficiency
Frequency Frequent
Updated