adj.
Pronunciation: ˌ h ī -p ə - ' tä-nik, -p ō -
Function: adjective
Etymology: International Scientific Vocabulary
Date: 1895
1 : having deficient tone or tension < hypotonic children>
2 : having a lower osmotic pressure than a surrounding medium or a fluid under comparison < hypotonic organisms>
– hy · po · to · nic · i · ty \ -t ə - ' ni-s ə -t ē \ noun