Meaning of Wollaston's doublet | Babel Free
Definitions
A magnifying glass consisting of two planoconvex lenses, designed to correct spherical aberration and chromatic dispersion.
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.