• WordNet 3.6
    • n basinet a medieval steel helmet
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Webster's Revised Unabridged Dictionary
    • n Basinet Same as Bascinet.
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Century Dictionary and Cyclopedia
    • n basinet A steel cap, originally of very simple form, named from its resemblance to a little basin. It was ordinarily worn alone; but in battle the heavy helmet or heaume was placed over it, resting upon the armor of the neck and shoulders. When the heaume came to be abandoned, on account of its great weight, the basinet was furnished with a vizor. It was the commonest form of headpiece during the thirteenth and fourteenth centuries, and so continued until the introduction of the armet. See helmet, vizor, aventaile, camail, and armor.
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Chambers's Twentieth Century Dictionary
    • n Basinet bas′i-net a light globular headpiece worn alone with a visor, or with the great helm resting on the shoulders, worn over it
    • Basinet Also Bas′net
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In literature:

Drapes about the head of the basinet are not only often in the way, shutting out air, etc., but they also gather dust and are unsanitary.
"The Mother and Her Child" by William S. Sadler
BASINET (a diminutive of "basin"), a form of helmet or headpiece.
"Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3" by Various
His helmet is a basinet, pointed at the top, probably worn over a complete hood of mail flowing to the mid-breast.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6" by Various