{"era":"current","word":"microwave","meaning":"An electromagnetic wave with a wavelength between about 1 millimeter and 1 meter, or an oven that uses such waves to cook or heat food.","children":[{"era":"classical","word":"micro-","meaning":"small","children":[],"language":"Ancient Greek"},{"era":"pre-1100","word":"wave","meaning":"moving water, moving disturbance","children":[],"language":"Old English"}],"language":"Modern English"}