RE: 'meniscus', I read this today
Derived from the Greek word mēniskos (crescent), a diminutive of mēnē (moon), 'meniscus' has at least three operative meanings here: in physics, it refers to the curved upper surface of a liquid in a tube; in optics, it is a lens that is convex on one side and concave on the other; while anatomically, it is a thin fibrous cartilage between the surfaces of some joints, such as the knee. All involve bending away from something, or a 'deflexion of energy.' But this is more than metaphor - the material elements are not merely figurative and neither discourse is simply the tenor of the other. The abruptness and frequency of the shifts between them prevents any ranking of cause and effect to establish itself, as their dialogic relationship deconstructs any pre-existing assumption about hierarchies. The cumulative effect of such parataxis, in which the figurative refuses to be purely metaphorical, is that whatever linguistic hierarchy seems to have been previously established is instantly undermined.