Meaning of Delboeuf illusion | Babel Free
Definitions
An optical illusion of relative size perception, usually illustrated by two discs of identical size, one of which is surrounded by a ring.
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.