Cohesion, along with adhesion (attraction between unlike molecules), helps explain phenomena such as meniscus, surface tension and capillary action. Mercury in a glass flask is a good example of the effects of the ratio between cohesive and adhesive forces.
Definition of aspire for English Language Learners : to want to have or achieve something (such as a particular career or level of success) ASPIRE Defined for Kids
Aspiration may refer to getting fluids (or small solid particles) into the airways, such as your trachea or lungs. When food or liquids go down the wrong pipe, you are experiencing aspiration. People can aspirate food or fluids into their airways while eating.