Synonyms of the word

chalky

• adj. Consisting of or containing chalk.
• adj. Resembling chalk in any way.

achromatic

• adj. (optics) Free from color; transmitting light without color-related distortion.
• adj. Containing components such as achromatic lenses and prisms, designed to prevent color-related distortion.
• adj. (biology) Uncolored; not absorbing color from a fluid; -- said of tissue.
• adj. (music) Having only the diatonic notes of the scale; not modified by accidentals.
• adj. Being achromatic in subject.

calcareous

• adj. Resembling or containing calcium carbonate or limestone; chalky.

carbonate

• n. Any salt or ester of carbonic acid.
• v. (transitive) To charge (often a beverage) with carbon dioxide.