Triga rhymes with triga because it is not a word.

Patrick A. Merritt has written:

'MCNP benchmarking and analysis of Oregon State University TRIGA Reactor' -- subject- s -: Water cooled reactors, Computer simulation, Monte Carlo method

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -TRIGA. That is, six letter words with 2nd letter T and 3rd letter R and 4th letter I and 5th letter G and 6th letter A. In alphabetical order, they are:

striga

Some other names for gluten include bulgur, couscous, dinkle, durum, einkorn, emmer, fu, graham, kamut, seitan, semolina, and spelt. Other common wheat products include wheat berry, wheat germ, wheat germ oil, wheat grass (also called triga), wheat gluten, wheat nut and wheat starch. All of these should be avoided if you have an allergy to gluten.