(number theory) An element of a given field (especially, a complex number) x such that for some positive integer n, xⁿ = 1.

The plant Smilax china, a liana of much of eastern Asia. / Smilax glabra, a plant used in Chinese herbology.

A type of parsley with a large edible root (Petroselinum crispum Radicosum Group).

plural of root bark

The root of Oldenlandia umbellata, native to India, which yields a durable red dyestuff.

Total, thorough, sweeping, complete, radical, drastic.

Totally, completely.

plural of root hair

A perennial, blue-flowered herb from the eastern United States, Polemonium reptans.

(algebra) A root of a polynomial equation which has multiplicity one.