perennial
91perennial yield — Sustained yield [16] …
92perennial stream — A stream or reach of a stream that flows continuously throughout the year and whose surface is generally lower than the water table adjacent to the region adjoining the stream. Compare: ephemeral stream, intermittent stream. GG …
93perennial question — eternal question, question that has stumped men throughout the ages and has not or cannot be answered …
94perennial stream — small river which flows throughout the year …
95perennial struggle — eternal struggle, perpetual struggle …
96perennial salt marsh aster — noun a variety of aster • Hypernyms: ↑aster …
97perennial canker — noun : a canker that lives over from one season to the next; specifically : a serious disease of apples caused by a fungus (Gloeosporium perennans) and characterized by cankers on the trunk and limbs …
98perennial peppercress — noun : a European peppergrass (Lepidium latifolium) introduced into No. America and especially troublesome as a weed in the southwestern United States having extensive rhizomes and leaves distinctly tapered to the base …
99perennial peppergrass — noun : hoary cress …
100perennial philosophy — noun : the philosophical tradition of the world s great thinkers from Plato, Aristotle, and Aquinas to their modern successors dealing with problems of ultimate reality (as the nature of being) and sometimes emphasizing mysticism opposed to… …