What does "hyponatremia" mean?

An abnormally low concentration of sodium in blood plasma.

How do you pronounce "hyponatremia"?

Pronounced //ˌhʌɪ.pəʊ.nəˈtɹiː.mi.ə//.

/ˌhʌɪ.pəʊ.nəˈtɹiː.mi.ə/ noun

noun ·Rare ·Advanced level

Noun

1
An abnormally low concentration of sodium in blood plasma. countable, uncountable
2
abnormally low level of sodium in the blood; associated with dehydration wordnet

From hypo- + natremia or hypo- + natr- + -emia.