1.Definition: (botany) the usually underground organ that lacks buds or leaves or nodes; absorbs water and mineral salts; usually it anchors the plant to the ground

Category: Plants

2.Definition: (linguistics) the form of a word after all affixes are removed

Related Noun(s):base, radical, stem, theme

Category: General

3.Definition: a number that, when multiplied by itself some number of times, equals a given number

Category: General

4.Definition: a simple form inferred as the common basis from which related words in several languages can be derived by linguistic processes

Related Noun(s):etymon

Category: General

5.Definition: someone from whom you are descended (but usually more remote than a grandparent)

Related Noun(s):ancestor, antecedent, ascendant, ascendent

Category: People

6.Definition: the embedded part of a bodily structure such as a tooth, nail, or hair

Category: General

7.Definition: the place where something begins, where it springs into being

"The Italian beginning of the Renaissance", "Jupiter was the origin of the radiation", "Pittsburgh is the source of the Ohio River", "Communism's Russian root"

Related Noun(s):origin, rootage, source

Category: Places

8.Definition: the set of values that give a true statement when substituted into an equation

Related Noun(s):solution

Category: General