1. Plural of aquatone; a printing or photographic process that produces tonal images using water-based inks or pigments, or the prints produced by this method.
Usage: technical; printing/photography

Examples

• The gallery displayed a collection of aquatones from the 19th century.
• Aquatones were popular among artists seeking to reproduce watercolor effects through mechanical printing.
• The museum's print collection includes several fine aquatones by European masters.
• Modern artists still experiment with aquatones to achieve subtle gradations of tone.