• Webster's Revised Unabridged Dictionary
    • a Tiglic (Chem) Of, pertaining to, or designating, an acid, C4H7CO2Hcalled also methyl crotonic acid), homologous with crotonic acid, and obtained from croton oil (from Croton Tiglium) as a white crystalline substance.
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Century Dictionary and Cyclopedia
    • tiglic Noting an acid, a colorless compound contained, in combination, in croton and certain other oils. It crystallizes in triclinic plates or rods, has an odor of benzoic acid, molts at 64.5° C, and boils at 198.5° C. Also called methyl-crotonic acid.
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