10-Letter Words Starting O & Ending R

• Any device that releases oxygen (or air) into water, especially one in an aquarium

• spend the winter

• egg-laying tubular structure at the end of the abdomen in many female insects and some fishes

• overcome by superior force

• (baseball) a person who plays in the outfield

• a fielder in cricket who is stationed in the outfield

• supplies extrinsic muscles of the eye

• someone who systematically obstructs some action that others want to take

• any structure that makes progress difficult

• generator that produces sonic oscillations or alternating current

• someone who creates new things