dia·caus·tic
| \ ¦dīə¦kȯstik \
Definition of diacaustic
(Entry 1 of 2)
: relating to a caustic curve or caustic surface formed by refraction — compare catacaustic
diacaustic
noun
\ " \
plural -s
Definition of diacaustic (Entry 2 of 2)
: a diacaustic curve or surface
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Merriam-Webster unabridged
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