1. having or existing in only one form; not showing variation in form or structure
Usage: formal; technical
2. in biology, relating to organisms or species that do not exhibit polymorphism
Usage: technical; biology

Examples

• The monomorphous structure of the crystal made it easy to identify under the microscope.
• Unlike many insect species, this population is monomorphous, with all individuals displaying identical physical characteristics.
• The mineral exhibits a monomorphous form across all known deposits.
• Monomorphous organisms lack the genetic variation seen in polymorphic species.
• The monomorphous design of the building reflects a minimalist architectural philosophy.