Of, relating to, or characteristic of a basilisk; having the nature or qualities attributed to a basilisk.
From basilisk plus the Latin suffix '-ine' (of or relating to). This is the formal scientific-sounding adjective form.
Basiliscine eyes became a literary device to describe someone with a poisonous stare—authors borrowed this from the ancient belief that basilisks killed by looking, which might come from people's real fear of venomous snakes.
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