the GNU version of the Collaborative International Dictionary of English
n. A figure consisting of many lines.
The Century Dictionary and Cyclopedia
n. A figure consisting of many lines.
n. In geometry, a system of n coplanar straights (sides), with all the flat-pencils (fans) they determine.
Word Usage
"KOLKATA, June 21: The Central Bureau of Investigation CBI today detained a youth in connection with the murder of Tapasi Malik in Singur about six months back and took him to Delhi for a polygram test, commonly known as lie detector test."