This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. filtered using ultrafiltration

"We knew that to be the best, we had to use only the highest quality undenatured protein sources such as ultrafiltered whey protein, ultrafiltered milk protein, undenatured egg albumin, and glutamine peptides."