👉 Nonvoluminous, or non-veinous, refers to a condition where there is a lack of blood flow to an organ. This can occur due to various factors such as injury, illness, or circulatory problems.
👉 Non-volatile, meaning that a substance remains unchanged or remains a stable state under certain conditions. Non-volatile substances are those that do not require energy to change their state of being from one state to another. Examples include gases and liquids, which are non-volatile since they do not need heat to change their state.