(chemistry) A salt that may be prepared by the action of hydrofluoric acid on many lithium compounds, occurring naturally as griceite; its crystals are used in optical instruments, and in radiation dosimetry (based on its radiothermoluminescence).

(geology) The rigid, mechanically strong, outer layer of the Earth; divided into twelve major plates.

Synonym of lychee

Of or relating to litigation. / Inclined to engage in lawsuits. / Argumentative or combative.

Well-educated, literary people; intellectuals who are interested in literature.

(uncountable) The study of rocks, with particular emphasis on their description and classification. / (countable) The general composition of a rock or rock sequence.

(geology) a mechanical analogue of the seismic lithosphere, used to simulate the flexural deformations of the Earth

(geology) the chemical boundary layer between the surface of the Earth and the asthenosphere that contains the material differentiated or extracted from the mantle

(geology) The region of the Earth's crust and mantle over which the flow properties of rock are insufficient to relieve stress.

(geology) the region between the surface of the Earth and the asthenosphere characterized by the efficient propagation of seismic waves