lex ‧ i ‧ cog ‧ ra ‧ phy /ˌleksɪˈkɒɡrəfi $ -ˈkɑː-/ BrE AmE noun [uncountable]
[ Date: 1600-1700 ; Language: Late Greek ; Origin: lexikographos 'dictionary-writer' , from lexikon ( ⇨ ↑ lexicon ) + Greek -graphos 'writer' ]
the skill, practice, or profession of writing dictionaries
—lexicographer noun [countable]
—lexicographical /ˌleksɪkəˈɡræfɪk ə l◂/ adjective