Botany A tree or shrub, especially a fruit tree such as an apple or a pear, repeatedly pruned and trained to grow on a support as a single ropelike stem.

• 修剪成单干形的果树：反复修剪使其生长在单一绳状树干上做为支撑的树或灌木，尤其是果树，如苹果树或梨树