QUINCUNCIAL n.
Having the leaves of a pentamerous calyx or corolla so imbricated that two are exterior, two are interior, and the other has one edge exterior and one interior; as, quincuncial æstivation. Quincuncial phyllotaxy (Bot.), an arrangement of five leaves in a spiral, each leaf two fifths of a circle from the next.…
RAZOR n.
Razor grass (Bot.), a West Indian plant (Scleria scindens), the triangular stem and the leaves of which are edged with minute sharp teeth. -- Razor grinder (Zoöl.), the European goat-sucker. -- Razor shell (Zoöl.), any marine bivalve shell belonging to Solen and allied genera, especially Solen, or Ensatella, ensis,…