▪ I. † unˈtwinned, ppl. a.1 Obs.—1
[un-1 8.]
Unparted, undivided.
| c 1450 Mirour Saluacioun (Roxb.) 1 Y⊇ blyssed Trinitee In o substaunce vntwynned. |
▪ II. unˈtwinned, ppl. a.2
[un-1 8.]
Cryst. Not furnished with a twin.
| 1879 Rutley Stud. Rocks x. 97 Untwinned crystals [of albite] are rare. 1888 ― Rock-forming Min. 277. |