təˈmentəm noun
( plural tomen·ta -tə)
Etymology: New Latin, from Latin, cushion stuffing consisting of matted wool, hair, feathers, from earlier (assumed) Latin tovimentum, from Latin tovi- (akin to Latin tumēre to be swollen) + -mentum -ment — more at thumb
1. : pubescence composed of densely matted woolly hairs
2. : a flocculent investment of the deep surface of the pia mater made up of minute blood vessels