Definition of ideogrammatic in English:
ideogrammatic
(also idiogrammatic)
adjective ˌɪdɪə(ʊ)ɡrəˈmatɪkˌʌɪdɪə(ʊ)ɡrəˈmatɪk
Of the nature of an ideogram or ideograph; using symbols as a means of expression.
Origin
Late 19th century; earliest use found in Science. From ideogram + -atic.