The description of the word you requested from the astronomical dictionary is given below.
A moon of 118 km diameter at about 151,400 km from the planet Saturn. The gravity at its surface is about 0.0010 times as strong as on Earth. The moon goes once around its planet in about 16.7 hours. The moon was discovered in 1980. Also called SXI (Saturn eleven). Its provisional designation was S/1980 S3.