Noun

(obsolete) Fibrin (formerly considered as one of the "animal humours").

*, Bk.I, New York, 2001, p.147:

The radical or innate is daily supplied by nourishment, which some call cambium, and make those secondary humours of ros and gluten to maintain it […].

The major protein in cereal grains, especially wheat; responsible for the elasticity in dough and the structure in baked bread.

* 2010 , Felicity Cloake, Word of Mouth Blog, The Guardian , 10 Jun 2010:

Unfortunately, wholemeal bread is, according to many experts, a tricky thing to get right, as the lower gluten content of the flour makes for dense results [...].

(rare, geology) A gluey, sticky mass of clay, bitumen etc.

* 1988 , James McPherson, Battle Cry of Freedom , Oxford 2004, p. 669:

Despite constant rain that turned roads to gluten , the Yankees kept moving.

Noun

(-)

The vice of eating to excess.

* {{quote-book, year=1922, author=(Ben Travers)

, chapter=5, title= A Cuckoo in the Nest , passage=The most rapid and most seductive transition in all human nature is that which attends the palliation of a ravenous appetite.