a. rare. [f. UNI- 1, after MULTIPLICATE a.] Having but one fold.
1840. Smart; and in later Dicts.
1858. H. & A. A. Adams, Genera of Recent Mollusca, II. 106. Oleacina … stobilus… Shell ovately fusiform; columella uniplicate; outer lip simple, not labiate within, or furnished with teeth.
1901. S. S. Buckman, Homœomorphy among Jurassic Brachiopoda, 232. Again, in Jurassic Brachiopoda a simpler development may be found—the tendency of smooth non-plicate species to become uniplicate, of the uniplicate to become biplicate.
