Xanthorhiza simplicissima, syn. X. apiifolia, a North American subshrub whose roots were formerly used to produce a yellow dye. / Hydrastis canadensis, the goldenseal.

(linguistics, uncountable) The study of tone in human languages. / (linguistics, countable) The system of rules governing tones in a particular language.

(computer languages, Internet) SPARQL protocol and RDF query language (a recursive acronym), a semantic Web technology.

plural of lithate