What is a synonym for "chromatics"?

Common synonyms include: spectrometry, spectroscopy.

How do you pronounce "chromatics"?

Pronounced //kɹəˈmætɪks//.

/kɹəˈmætɪks/ noun

noun ·Rare ·Advanced level

Noun

1
Chromatic harmonies or notes. plural, plural-only
2
The science of colours; the branch of optics that deals with the properties of colours. plural, plural-only

From chromatic + -s (suffix forming pluralia tantum).