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a round metal seal made of lead, silver, or gold, which was usually used in the Middle Ages to fasten papal, imperial, and royal acts (documents) by being tied to the document by a string; the act itself, with the bulla tied to it, was also called a bulla. [In English the act is called a bull.] The most important royal and imperial decrees, fastened with golden seals, came to be called Golden Bulls (such as the Golden Bull of 1222, issued by the Hungarian King Andrew II, and the Golden Bull of 1356, issued by Charles IV of the Holy Roman Empire). In later centuries, up until modern times, the term “bulla” was used to designate only the most important acts issued by the popes of Rome.

The supplementary historical discipline known as sphragistics studies medieval bull seals.



A circular metal boss used by the ancient Romans as a decoration for fastening parts of doors; often highly ornamented.
References in periodicals archive ?
1) The ostium of the ethmoid bulla is usually found in the posterior and medial aspect of the bulla draining into the hiatus semilunaris superior; sometimes it is found in the anterior or lateral ethmoid bulla wall, the ethmoid infundibulum, the retrobullar recess, or the hiatus semilunaris inferior.
Bulla has developed a new tuna fly, which he calls the Lucero, which means light, , after the family of fishermen at Las Arenas who helped him design it.
Nasal endoscopy revealed a bilateral defect of the inferior concha that was attributable to the earlier operation and to the plenitude of the right ethmoid bulla determined during 0[degree] nasal endoscopy (figure 1).
In order to prevent ethmoid recirculation, we prefer to identify the ostium of the bulla and resect the bridge of the posterior bullar wall.
2) Yanagisawa et al endoscopically demonstrated that nasal polyps can originate in the uncinate process, the ethmoid infundibulum or bulla, the frontal recess, the suprabullar and retrobullar recess, the hiatus semilunaris, the turbinates, and the mucosa of the septum.
The middle turbinate--the center of the three processes that are suspended from the lateral wall of the nasal cavity--projects over the ethmoid bulla and the uncinate process.
Cicatricial pemphigoid differs from bullous pemphigoid in that the former is characterized by the presence of a scar secondary to the bulla.
CONTACT: Sandy Fruhman, 713-207-3123, or Dan Bulla, 713-207-3120, both for Houston Lighting & Power Company/
Acute manifestations of Stevens-Johnson syndrome within the esophagus may include bulla formation and erosive involvement of the mucosa with resultant hemorrhage.
Polyps arise in various parts of the nasal cavity, including the uncinate process, the ethmoid infundibulum, the ethmoid bulla, the frontal recess, the sphenoethmoid recess, the superior meatus, the middle turbinate, and the superior meatus.
1] Almost two-thirds of those patients had polyps originating in the anterior aspect of the ethmoid bulla.
An oral and oropharyngeal examination revealed the presence of aphthous ulcerations, as well as a 3 x 3-cm raised inflammatory lesion on the right anterior lateral tongue and a 5 x 5-mm bulla on the hard palate in the midline.