ضرس

2 ضرّسهُ ذ inf. n. تَضْرِيسٌ: see ضَرَسَهُ, in five places. ― -b2- تَضْرِيسٌ also signifies (tropical:) An indentation, or serration, (Az, TA,) like أَضْرَاس, (TA,) in a sapphire (يَاقُوتَة) and a pearl, or in wood. (Az, TA.)