The term 'tending to float' can be summarized by the crossword solution 'BUOYANT, ' which is a 7-letter word. Buoyancy is an object's ability to float in a liquid or gas due to its density being lower than that of the surrounding medium. This phenomenon is caused by the upward force of the fluid pushing against the object, which is known as the BUOYANT force. Buoyancy is an important concept in many fields, such as engineering, physics, and oceanography.