1) Nematode 2) Nematode worm 3) Roundworm 4) Tylenchus tritici 5) Wheat eel 6) Wheat eelworm 1) Nematode 
• (n.) A small nematode worm (Tylenchus tritici) which attacks wheat, advancing through the stem to the grains in the air. • (n.) A small nematode worm (Anguillula tritici) which attacks the grains of wheat in the ear. It is found in wheat affected with smut, each of the diseased grains containing a large number of the minute young of the...
Wheat'worm` noun (Zoology) A small nematode worm ( Anguillula tritici ) which attacks the grains of wheat in the ear. It is found in wheat affected with smut, each of the diseased grains containing a large number of the minute young of the worm. 
[n] - small roundworm parasitic on wheat
wheat eel noun small roundworm parasitic on wheat