An ornamental headband worn as a badge of royalty. / A crown. / Regal power; sovereignty; empire—considered as symbolized by the crown.

To adorn with a diadem; to crown.

plural of diadem

Third-person singular simple present indicative form of diadem

present participle of diadem

simple past tense and past participle of diadem

Wearing a diadem.

Propithecus diadema, an endangered species of sifaka, one of the lemurs endemic to certain rainforests in eastern Madagascar.

plural of diademed sifaka

The common garden spider (Araneus diadematus).