What does "sequela" mean?

Sequela: One who, or that which, follows. Specifically: (a) An adherent, or a band or sect of adherents. "Coleridge and his sequela." G. P. Marsh. (b) That which follows as the logical result of reasoning; inference; conclusion; suggestion. Sequelæ, or thoughts suggested by the preceding aphorisms. Coleridge. (c) (Med.) A morbid phenomenon left as the result of a disease; a disease resulting from another.