bilobed

Bilobed is an anatomical and descriptive term used to describe a structure that has two distinct lobes or sections. The word combines Latin bi- meaning two and lobus meaning lobe and is used across disciplines to indicate a two-lobed morphology rather than a specific organ.

In botany and plant morphology, bilobed describes leaves, petals, or other plant parts that exhibit two lobes separated by a notch or constriction. Bilobed leaves are common in many plant species and may aid in identification. The term can also apply to fruit or seed shapes that display two lobes, such as a twin-lobed capsule or seed.

In anatomy and histology, bilobed describes an organ, tissue, or cell with two lobes. A familiar usage occurs with certain white blood cells, where the nucleus is divided into two lobes connected by a slender linker. The term is also used for other paired or bifurcated structures that present a two-lobed appearance.

Bilobed structures may vary in size, degree of separation, and whether the lobes are similar or asymmetric. The term is descriptive rather than taxonomic and can be applied to many organisms and contexts.