velodrome
chamber; loculus; room; thalamus; ventricle
【医】 camera; camerae; cell; chamber; room; thalamo-; ventricle; ventriculo-
ventriculus
inner; inside; within
【医】 end-; endo-; ento-; in-; intra-
bicycle; bike; cycle
contest; game; match; surpass
field; a level open space; scene
【化】 field
【医】 field; plant