from The Century Dictionary.
- Having but one generation annually: said of the ordinary races of the domestic silkworm to distinguish them from those races having two or more generations.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective biology Having one
broodor generationin a year.
Sorry, no etymologies found.
Phratora vulgatissima has one generation per year (univoltine) in Sweden.