(linguistics, phonetics) An articulation that involves the expansion of the pharyngeal cavity by moving the base of the tongue forward and often lowering the larynx during the pronunciation of a vowel.

A dessert consisting of root beer poured over vanilla ice cream, so that the ice cream floats.

(mathematics, of a set of numbers or values) The square root of the arithmetic mean of the squares.

(linguistics, often attributive) An articulation involving retraction of the tongue root.

A soil-borne fungus, Phymatotrichopsis omnivora, that attacks the roots of susceptible plants.

plural of root beer float

plural of root mean square

plural of aerial root

(Cockney rhyming slang) Boots or other footwear

plural of square root