• Webster's Revised Unabridged Dictionary
    • n Pronotum (Zoöl) The dorsal plate of the prothorax in insects. See Illust. of Coleoptera.
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Century Dictionary and Cyclopedia
    • n pronotum The anterior one of the three divisions of the notum of an insect, preceding the mesonotum; the dorsal or tergal section of the prothorax; the upper part of the first thoracic segment or prothoracic tergum. It is typically divided into four sclerites (the præscutum, scutum, scutellum, and postscutellum), which sclerites are, however, usually more or less consolidated and therefore indistinguishable. See cut under Insecta.
    • n pronotum See the adjectives.
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Chambers's Twentieth Century Dictionary
    • n Pronotum prō-nō′tum the tergal portion of the prothorax in the Insecta
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Webster's Revised Unabridged Dictionary
NL. See Pro-, and Notum
Chambers's Twentieth Century Dictionary
Gr. pro, before, nōtos, back.


In literature:

Bouclier: the pronotum, q.v.
"Explanation of Terms Used in Entomology" by John. B. Smith
The pronotum reaches back to the tegulae.
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 2" by Various