As nouns the difference between breathing and hypopnea

is that breathing is the act of respiration; a single instance of this while hypopnea is (pathology) a disorder which involves episodes of overly shallow breathing or an abnormally low respiratory rate.

As a verb breathing

is .

As an adjective respiratory

is relating to respiration; breathing.

As a noun hypopnea is

(pathology) a disorder which involves episodes of overly shallow breathing or an abnormally low respiratory rate.

As nouns the difference between weather and antifogmatic

is that weather is the short term state of the atmosphere at a specific time and place, including the temperature, humidity, cloud cover, precipitation, wind, etc while antifogmatic is an alcoholic drink taken in the morning to brace oneself before going out into bad weather.

As a verb weather

is to expose to the weather, or show the effects of such exposure, or to withstand such effects.

As an adjective curved

is having a curve or curves.

As a verb curved

is (curve).

As a noun antihelix is

(medicine) the curved prominence of the external ear.

As nouns the difference between prominence and antihelix

is that prominence is the state of being prominent: widely known or eminent while antihelix is (medicine) the curved prominence of the external ear.

As an adjective external

is outside of something; on the exterior.

As a noun antihelix is

(medicine) the curved prominence of the external ear.

As a verb ear

is (label) refuse, deny; repel.

As a noun antihelix is

(medicine) the curved prominence of the external ear.

As proper nouns the difference between sakhalin and amur

is that sakhalin is the largest island of Russia, off its eastern coast, a Russian oblast located on the island while Amur is the world's ninth longest river, forming the border between the Russian Far East and Northeastern China, emptying into the Pacific Ocean through the Strait of Tartary, where the mouth of the river faces the northern end of the island of Sakhalin.

As proper nouns the difference between blagoveshchensk and amur

is that blagoveshchensk is a city in Siberia, Russia, on the border with China, the administrative centre of Amur Oblast while Amur is the world's ninth longest river, forming the border between the Russian Far East and Northeastern China, emptying into the Pacific Ocean through the Strait of Tartary, where the mouth of the river faces the northern end of the island of Sakhalin.

Amur is a alternative form of heilongjiang.

As proper nouns the difference between heilongjiang and amur

is that heilongjiang is a province in northeastern China while Amur is the world's ninth longest river, forming the border between the Russian Far East and Northeastern China, emptying into the Pacific Ocean through the Strait of Tartary, where the mouth of the river faces the northern end of the island of Sakhalin.