Top definition
sodium polyacylate in the rather convenient form of a dinosaur.. or other creature
when placed in water grows in size as it is a polar substance
For science class we strived to create the largest gro beast by experimenting with different substances to put the lil fellas in.
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug