This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Plural form of security.

"In addition, the Fed launched a new program to auction options of up to $50 billion under that program -- the term securities lending facility -- "for exercise in advance of periods that are typically characterized by elevated stress in financial markets, such as quarter ends.""

impurities