Spongy \Spon"gy\, a.

1. Soft, and full of cavities; of an open, loose, pliable texture; as, a spongy excrescence; spongy earth; spongy cake; spongy bones.

2. Wet; drenched; soaked and soft, like sponge; rainy. ``Spongy April.'' --Shak.

3. Having the quality of imbibing fluids, like a sponge.

Spongy lead (Chem.), sponge lead. See under Sponge.

Spongy platinum. See under Platinum.

Source: Webster's Revised Unabridged Dictionary (1913)