noun. (botany) a natural swelling or enlargement: at the base of the stalk or seta in certain mosses or on the cone scale of certain conifers.
noun. (anatomy) a natural outgrowth or projection on an organ or body part such as the process of a vertebra.
1. Noun, singular or mass The biggest is Pseudotherathosa apophysis; adults can measure 13 inches across.
