Having two ribs or rib-like ridges; in botany and zoology, describing structures with two prominent parallel ridges or costa.
From 'bi-' (two) + 'costate' (having ribs), from Latin 'costa' (rib). Used in natural history and taxonomy to describe anatomical or structural features with two ridge-like projections.
Plant seeds and insect wings often have bicostate features—two parallel ridges—that strengthen them like I-beams in construction, so this simple two-rib design is nature's engineering solution for maximum strength with minimum weight.
Complete word intelligence in one call. Free tier — 50 lookups/day.