Definition of "irradiated"

Per Fess, Or, and Argent, a Rose irradiated Gules, therefrom issuant two Griphons' heads addorsed Sable. William Barlow.

1829, Stephen Hyde Cassan, Lives of the bishops of Bath and Wells, page 65

A Lion of England imperially crowned, between three roses gules in chief, and as many argent in base, barbed, seeded, and irradiated or […]

1893, John Edwin Cussans, Handbook of Heraldry, page 277

[...] a naked child seized by a bear passant sable semee d'estoiles or, on a chief argent three roses gules irradiated.

1897, William Kirkpatrick Riland Bedford, The Blazon of Episcopacy [...] of England and Wales, page 187

Azure, on a cross quarterly pierced or, four chevrons gules, with an honourable augmentation, a chief argent, thereon a rose gules, irradiated gold, within a wreath of oak proper.

1899, Arthur Charles Fox-Davies, Armorial Families, page 878

Quarterly : 1st and 4th, Sable, a fesse wavy between two estoiles irradiated argent, Drake; 2nd, Gules, on a bend or, a baton azure, on a chief the arms of […]

1902, Joseph Jackson Howard, Visitation of England and Wales, page 1

[...] in her dexter hand a pair of scales or, and in her sinister a touchstone sable, her head irradiated.

1915, Arthur Charles Fox-Davies, The Book of Public Arms, London : T.C. & E.C. Jack, page 326

Crest — Rising from the top of a lighthouse argent irradiated or a martlet azure.

2020 April 20, Susan Morris, Debrett's Peerage and Baronetage 2019, eBook Partnership, page 2780