rosehead

Noun

rosehead (plural roseheads)

1. The head or blossom of a rose.
   • He's here, I've heard, day after day, following you round while you snip off roseheads.1986, Elizabeth Cadell, The Empty Nest
   • The achillea and Craspedia have strong stems which can simply be pushed into the foam ball, but as the roseheads, dahlias and Helichrysum have no stems, it is best to use a glue gun to fix the flowers to the foam ball.1994, Stephanie Donaldson, Dried Flower Gifts: Creating Decorative Arrangements, page 44
2. A many-sided pyramidal head upon a nail.
   • In the Fort Southwest Point collection, hand-wrought iron nails headed in the "rosehead" pattern account for a total of 3,549 specimens (38% of hand-wrought nails).1993, Samuel D. Smith, Fort Southwest Point Archaeological Site, Kingston,, page 241
   • The most common shape was the "rosehead"; however, broad "butterfly" heads and narrow L-heads also were crafted.2000, Thomas Durant Visser, Field Guide to New England Barns and Farm Buildings, page 24
3. A nail with that kind of head.
   • The gadroon strips have been reset, their roseheads countersunk.1985, Morrison H. Heckscher, Mary-Alice Rogers, American Furniture in the Metropolitan Museum of Art, page 115
   • It's the nails. There are some hand-forged roseheads in there.2009, Sharon Fiffer, Killer Stuff
4. A circular or spherical nozzle or end to something that is perforated to allow the escape of liquid or gas.
   • To this I attach a rosehead like that of an ordinary deggin-can, and have it placed, pointing upwards, directly underneath and near to my patient's nostrils.1860, Thos. Greaves, “Memoirs of a Veterinary Surgeon: Thoughts in the Sick Box”, in Veterinarian, volume 33, page 202
   • At first a bottle was used to which an ordinary watering pot rosehead was attached, and the solution thrown on the suspended sheets, but this was soon modified and changes made until a suitable apparatus was devised for disinfection purposes and a new system of room disinfections was introduced.1902, Chas. W. Behm, “Formaldehyde Disinfection”, in Legislative Documents Submitted to the Twenty-ninth General Assembly of the State of Iowa, page 259
5. A bur or gouge that has a spherical head and curled blades, resembling the curled petals of a rose.
   • The rosehead is a most effective gouge for removing carious bone, as well as a very convenient instrument for enlarging cloacae to allow of an exploration for sequestra.1864, Timothy Holmes, A System of Surgery, page 1044
   • The rosehead bur is used to remove bone and the flat fissured bur to bisect a tooth for easier removal.2017, Nicola Rogers, Cinzia Pickett, Basic Guide to Oral and Maxillofacial Surgery, page 50
6. A conical drillbit that has radiating blades.
   • The rosehead bit has a series of cutters, nine in all, that radiate from the centre point.1984, P. F. Lye, Woodwork Theory, page 67
   • Usually included is a rose bit (Fig. 13.20) or the rosehead countersink (Fig. 13.21).2006, Frank Saxon, Tolley's Basic Science and Practice of Gas Service, page 438