Which term corresponds to a condition of enlarged tissue or organ?

The term that corresponds to a condition of enlarged tissue or organ is indeed represented by the suffix "-megaly." This suffix is derived from Greek, where "megalo" means large or great. When used in medical terminology, it describes the enlargement of specific organs or tissues, such as hepatomegaly for an enlarged liver or cardiomegaly for an enlarged heart.

The other suffixes provided do not convey the concept of enlargement. For instance, "-emia" refers to a condition related to blood, typically indicating the presence of a substance in the blood (like in anemia, which means a deficiency in red blood cells or hemoglobin). "-grexia," although not commonly used, relates more to temperature or fever, and "-scopy" pertains to the examination of an organ or cavity with an instrument, often involving visualization rather than describing a physical enlargement. Thus, "-megaly" is the correct choice for describing an enlarged condition in medical terminology.