Ground substance is the background material within which all other connective tissue elements are embedded. In ordinary connective tissue, the ground substance consists mainly of water whose major role is to provide a route for communication and transport (by diffusion) between tissues.
Definitions for tiredness. Here are all the possible meanings and translations of the word tiredness. Princeton's WordNet(0.00 / 0 votes)Rate this definition: fatigue, weariness, tiredness(noun) temporary loss of strength and energy resulting from hard physical or mental work. he was hospitalized for extreme fatigue; growing fatigue was apparent from the decline in the execution of their athletic skills; weariness overcame her after twelve hours and she fell asleep.
Weakness is the feeling of body fatigue, or tiredness. A person experiencing weakness may not be able to move a certain part of their body properly. They may also experience tremors, which are uncontrollable movements, or twitches in the area of... Read More. Weakness is the feeling of body fatigue, or tiredness. A person experiencing weakness may not be able to move a certain part of their body properly. They may also experience tremors, which are uncontrollable movements, or twitches in the area of weakness.