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From reptile + -ian, replacing earlier reptilious and adjectival reptile.
Etymology from Wiktionary, CC BY-SA 4.0.
reptilian
Today it means: Of or relating to the members of the class Reptilia (reptiles). Full definition →
Today it means: Of or relating to the members of the class Reptilia (reptiles). Full definition →
From reptile + -ian, replacing earlier reptilious and adjectival reptile.
Etymology from Wiktionary, CC BY-SA 4.0.