1. Free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts
   - planaria

Derived forms: planarians

Type of: flatworm, platyhelminth

Part of: class Turbellaria, Turbellaria

Encyclopedia: Planarian

• interrogative mood
• interrogative sentence
• interrogatively
• interrogator
• interrogatory
• interrupt
• interrupted
• interrupted fern
• interrupter
• interruption
• interscholastic
• interschool
• intersect
• intersectant
• intersecting
• intersection
• intersection point
• intersectional
• intersex
• intersexual
• interspace
• interspecies
• interspecific
• interspersal
• intersperse