Foaming at the mouth and Hydrophobic

Hydrophobic and foaming at the mouth are semantically related. In some cases you can use "Hydrophobic" instead an adjective phrase "Foaming at the mouth".

Hydrophobic adjective - Lacking affinity for water; tending to repel and not absorb water; tending not to dissolve in or mix with or be wetted by water.

Foaming at the mouth and hydrophobic are semantically related. You can use "Foaming at the mouth" instead an adjective "Hydrophobic".