stirps /stûrps/, also stirp /stûrp/

1. (a person and his or her descendants forming) a branch of a family (esp law)
2. Pedigree
3. A category in biological classification, eg (zoology) a superfamily, family or subfamily, or (botany) a rootstock that retains characteristics in cultivation

stirpˈiculture noun

Selective breeding

• UB40
• U-bend
• uber-
• uberous
• uberrima fides
• uberties
• uberty
• ubieties
• ubiety
• ubiquarian
• ubique
• ubiquinone
• ubiquinones
• ubiquitarian
• ubiquitarians
• ubiquitary
• ubiquities
• ubiquitin
• ubiquitins
• ubiquitous
• ubiquitously
• ubiquity
• ubi supra
• U-boat
• U-boats