tricycle /trīˈsi-kl/

1. (short form trike) a three-wheeled cycle
2. A light three-wheeled car formerly used by disabled people

To ride a tricycle

triˈcycler noun

tricyclic /trī-sīˈklik/ adjective

1. Having three whorls or rings
2. (of a chemical compound) having three rings in its molecular structure, some compounds of this type being used as antidepressant drugs

triˈcycling /-si-/ noun

trīˈcyclist noun

tricycle undercarriage or tricycle landing gear noun

An aircraft's undercarriage or landing gear, which has three wheels

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