• (n.) Any one of the Xylophagides. • (n.) One of a tribe of beetles whose larvae bore or live in wood. • (n.) Any species of Xylophaga.
Xy·loph'a·gan noun [ See Xylophagous .] (Zoology) (a) One of a tribe of beetles whose larvæ bore or live in wood. (b) Any species of Xylophaga. (c) Any one of the Xylophagides. 
xylophagan Names in different classifications for various groups of insects whose larvae devour wood. An insect belonging to one of these groups.