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ob- (iou)



ob- prefix. .
[Repr. Latin ob towards, against, in the way of, ob- prefix usu. denoting opposition or confrontation. In sense 2 app. taken from OB(VERSE.]
Used in words adopted from Latin.
Forming words (chiefly technical and scientific) with the sense 'inversely, in a direction or manner contrary to the usual', as obconical, obovate.
ob'conic adjective (Botany) = obconical E19.
ob'conical adjective (chiefly Botany & Zoology) inversely conical, with the apex downward or inward E19.
ob'cordate adjective (Botany) inversely cordate, with the pointed end serving as the base or point of attachment L18.
ob,diplo'stemonous adjective (Botany) inversely diplostemonous, having the stamens of the outer whorl opposite the petals and those of the inner whorl opposite the sepals L19.
ob,diplo'stemony noun (Botany) obdiplostemonous condition L19.
ob'lanceolate adjective (Botany) inversely lanceolate, with the pointed end serving as the base or point of attachment M19.
ob'ovate adjective (Botany & Zoology) inversely ovate, with the broader end uppermost or forward L18.
ob'ovoid adjective (Botany & Zoology) somewhat obovate E19.