plantar calcaneonavicular ligament

noun
plantar cal·​ca·​neo·​na·​vic·​u·​lar ligament | \ -(ˌ)kal-ˌkā-nē-ō-nə-ˈvik-yə-lər- How to pronounce plantar calcaneonavicular ligament (audio) \

Medical Definition of plantar calcaneonavicular ligament

: an elastic ligament of the sole of the foot that connects the calcaneus and navicular bone and supports the head of the talus

called also spring ligament