Clonal may refer to:

Biology Clonal interference, a phenomenon that occurs when two (or more) beneficial mutations arise independently in different individuals in a genetically homogeneous population of an asexually reproducing organism Aggregating anemone, also called clonal anemone Vegetative cloning, a form of asexual reproduction in plants Clonal reproduction

Immunology Clonal deletion, a process by which B cells and T cells are deactivated before act significantly upon specific antigens Clonal selection theory, a model for how the immune system responds to infection Clonal anergy, a lack of reaction by the body's defense mechanisms to foreign substance

Chemistry Clonal, a chemical molecule sold under that name as a fragrance ingredient

See also Clone (disambiguation) Clonalis House Clone (genetics) Cloning