Linear A

Linear A is one of two linear scripts used in ancient Crete (a third script is Cretan Hieroglyphs). They were discovered and named by Arthur Evans. Linear B was deciphered in 1952 by Michael Ventris and was used to write Mycenaean Greek. Linear A is far from being totally deciphered but it is partially understood and it may be read through Linear B values.
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Noun
1. an undeciphered writing system used in Crete in the 17th century B.C.
(hypernym) orthography, writing system

مسرع خطي، معجل خطي