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[lith-ik] /ˈlɪθ ɪk/

pertaining to or consisting of stone.
Petrology. pertaining to clastic rocks, either sedimentary or volcanic, containing a large proportion of debris from previously formed rocks:
a lithic sandstone; lithic tuff.
Pathology. pertaining to stony concretions, or calculi, formed within the body, especially in the bladder.
Chemistry. of, relating to, or containing lithium.
Archaeology. a stone artifact.
a combining form used in the names of cultural phases in archaeology characterized by the use of a particular type of tool:
Chalcolithic; Neolithic.
of, relating to, or composed of stone
containing abundant fragments of previously formed rock: a lithic sandstone
(pathol) of or relating to a calculus or calculi, esp one in the urinary bladder
of or containing lithium
combining form
(in anthropology) relating to the use of stone implements in a specified cultural period: Neolithic

1797, from Greek lithikos “of or pertaining to stone,” from lithos “stone” (see litho-).


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  • Lithification

    [lith-uh-fi-key-shuh n] /ˌlɪθ ə fɪˈkeɪ ʃən/ noun, Geology. 1. the process or processes by which unconsolidated materials are converted into coherent solid rock, as by compaction or cementation. /ˌlɪθɪfɪˈkeɪʃən/ noun 1. the consolidation of a loosely deposited sediment into a hard sedimentary rock noun the process by which unconsolidated sediments are converted into solid stone […]

  • Lithify

    [lith-uh-fahy] /ˈlɪθ əˌfaɪ/ verb (used with object), lithified, lithifying. 1. to change (sediment) to stone or rock. verb (used without object), lithified, lithifying. 2. to become lithified.

  • Lithium

    [lith-ee-uh m] /ˈlɪθ i əm/ noun 1. Chemistry. a soft, silver-white metallic element, the lightest of all metals, occurring combined in certain minerals. Symbol: Li; atomic weight: 6.939; atomic number: 3; specific gravity: 0.53 at 20°C. 2. Pharmacology. the substance in its carbonate or citrate form used in the treatment or prophylaxis of bipolar disorder […]

  • Lithium-aluminum-hydride

    noun, Chemistry. 1. a white powder, LiAlH 4 , used chiefly as a chemical reducing agent, especially in pharmaceutical and perfume manufacturing.

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