The term 'SPONGE FEATURE' is a combination of two words, 'SPONGE' and 'FEATURE'. A SPONGE is a type of aquatic organism that has a porous structure, allowing it to absorb water and other liquids. A FEATURE is an element or characteristic of something. Therefore, the term 'SPONGE FEATURE' refers to a FEATURE of something that has a porous structure, allowing it to absorb liquids. The crossword solution for this term is 'PORE', which is a small opening in the surface of an object that allows liquids to pass through.