1. Plural of granddam; grandmothers, or female ancestors.
Usage: archaic or literary; sometimes used in genealogical or historical contexts
2. In horse breeding, female ancestors in a pedigree; dams of dams.
Usage: technical; equestrian

Examples

• The family tree traced back through several granddams to the founding generation.
• She learned about her granddams' lives through old letters and photographs.
• The horse's granddams were known for their speed and endurance.
• In genealogy, granddams refer to the female line of descent.
• The breeder studied the granddams to understand the bloodline's characteristics.