• Webster's Revised Unabridged Dictionary
    • n Urceolus (Bot) Any urn-shaped organ of a plant.
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Century Dictionary and Cyclopedia
    • n urceolus A little pitcher or ewer.
    • n urceolus In botany, any pitcher- or urn-shaped body.
    • n urceolus In zoology, the external tubular casing or sheathing of a wheel-animalcule; the zoöthecium of a rotifer, corresponding to the lorica of an infusorian. It may be gelatinous and hyaline, or mixed with hard foreign particles; in rare cases, as that of Melicerta, the urceolus is not organic, but fabricated from extrinsic matter. Encyc. Brit., XXI. 5.
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Chambers's Twentieth Century Dictionary
    • n Urceolus ur-sē′ō-lus a monopetalous corolla with a contracted orifice: the external case or sheath of a rotifer
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Webster's Revised Unabridged Dictionary
L., a little pitcher
Chambers's Twentieth Century Dictionary
L. urceolus, dim. of urceus, a pitcher.