HomeServicesBlogDictionariesContactSpanish Course
Home › Dictionary › English › crystal set
Back to search

crystal set

Noun CEFR B2

Definitions

An early radio receiver, having no electrical power supply except the radio waves themselves; it used a crystal of lead or cadmium sulphide and a wire (the cat's whisker) touching the crystal's surface.

Equivalents

5 more languages

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

crystal sphere crystal stone crystal system crystal twinning crystal violet crystal-gazer

Learn this word in context

See crystal set used in real conversations inside our free language course.

Start Free Course

Know this word better than we do? Language is a living thing — help us keep it growing. Collaborate with Babel Free