What is "lithal"

n. 1 (context informal inorganic compound English) lithium aluminium hydride; 2 (context informal geomorphology English) A pingo or hydrolaccolith; a mound of earth-covered ice found in the Arctic and subarctic environments that can reach up to 70 m in height and up to 600 m in diameter.

Lithal can mean:

• Lithium aluminium hydride (LiAlH), also abbreviated to LAH, a powerful reducing agent used in organic synthesis
• Lithalsa, a term sometimes used in geomorphology for designing a pingo, a palsa, or a hydro laccolith