(Christianity, historical) A member of fanatical bands of predatory peasants that flourished in North Africa in the 4th century. They were associated with Donatists and sought death by martyrdom.

(immunology) A mixture of very many peptides having closely-related sequences, designed as a synthetic vaccine in cases of hypervariability

(organic chemistry) Any substance used to stabilize blends of immiscible polymers

(LGBT, slang) A trans girl, a trans woman; a male-to-female transsexual person.