Mandarin Q(of food) having a pleasant chewiness (like mochi, tapioca pearls, taro balls etc – foods with a springy or gel-like mouthfeel).

Q is pronounced in Mandarin just like the English letter and is used as an adjective, describing the consistency, often the mouthfeel, of for example gummy bears. Gelatinous is the closest English translation I found, but that doesn't describe Q noodles well, which are softer than "al dente", while not being mushy. I have no idea how Q came to be a Chinese word, given that it also completely goes against Chinese sound patterns.