(entomology) Having sixteen joints.

(pharmacology) A macrolide antibiotic.

The school of thought, in Roman Catholicism, that the popes of the new religion of Vatican II council have been defective or deprived of the infallible teaching authority of the office because of their Modernist intent and remain in pope elect status until rencanting the innovations.

(mathematics) A 16-dimensional nonalternative extension of an octonion with one real part and 15 imaginary parts that are each an independent square root of -1.

plural of sedenion

The habit of being sedentary.

(mathematics) Of or pertaining to sedenions.

plural of Seder

A surname.

A surname.