A material that has been or is capable of being taken up by another substance by either absorption or adsorption

• Potassium ___ (food mold inhibitor)
• With "potassium," it's a food preservative
• Potassium ___ (food preservative)
• Potassium ___ (preservative)
• Material capable of being taken up by another substance
• Material that's absorbed

WordNet Word definitions in WordNet
n. a material that has been or is capable of being taken up by another substance by either absorption or adsorption

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Sorbate \Sor"bate\, n. [Cf. F. sorbate. See Sorbic .] (Chem.) A salt of sorbic acid.

Wiktionary Word definitions in Wiktionary
n. (context chemistry English) Any salt or ester of sorbic acid.