Angustiseptal refers to something that is narrow or slender in shape, typically in reference to plant structures. Synonyms that can be used for this word include slim, thin, slender, fine, delicate, tenuous, and attenuated. These words describe something that is refined and dainty in appearance. In the context of botany, these synonyms may reference a narrow leaf or petal, or even a slender stem. The word angustiseptal may also be used to describe the shape of various structures, such as the angustiseptal nerve in the human body, which runs through a narrow passage. In all of these cases, the synonyms for angustiseptal describe something that is small and thin.