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 particular.

n. : The details or specifics of something.

"If this arrangement meets your approbation, he wishes you to bring to town, all his letters to you, on the present subject, as they contain particulars which have escaped his memory, and which would be useful to refer to."