A species of vole, Microtus oeconomus.

The pressure (the result of osmosis) exerted by the roots of vascular plants that moves water into the leaves and causes guttation.

Alternative spelling of grassroots

Ginger, the underground stem, or rhizome, of the plant Zingiber officinale.

A beverage, most often a carbonated soft drink made from a combination of vanilla, cherry tree bark, licorice root, sarsaparilla root, sassafras root bark, nutmeg, anise, and molasses, among other things.

(US) The root of the liquorice plant, Glycyrrhiza glabra, from which a sweet flavoring with an anise scent is extracted. / Glycyrrhiza, especially Glycyrrhiza lepidota (American licorice)

a reflex in infants in which the head is turned towards any stimulus; used to find the nipple

(computing) Alternative spelling of rootkit

To dig or pull up by the roots; to deracinate.

(phytopathology) Any of several plant fungal diseases caused by having over-wet roots.