root

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ROOT. That part of a tree or plant under ground from which it draws most of its nourishment from the earth.
     2. When the roots of a tree planted in one man's land extend into that of another, this circumstance does not give the latter any right to the tree, though such is the doctrine of the civil law; Dig. 41, 1, 7, 13; but such person has a right to cut off the roots up to his line. Rolle's R. 394, vide Tree.
     3. In a figurative sense, the term root is used to signify the person from whom one or more others are descended. Vide Descent; Per stirpes.

References in periodicals archive ?
The results confirmed that MTA without matrix provides an effective seal of root perforations and clinical healing of the surrounding periodontal tissue.
A clinical and roentgenological study of 55 cases of root perforation.
Separated instruments, ledge formation, strip perforation, furcal perforation and root perforation were present in 6 (2.