This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Plural form of timbre.

"But so it went ... and the next time Gil and I met we were in a custom-fashioned sound booth (courtesy of Gil), made just for making noise with paper -- paper of all textures, thicknesses, grains, and timbres."