pleurothallis: any of numerous small tufted orchids of the genus Pleurothallis having leathery to fleshy leaves and racemes of 1 to many small flowers
entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
newton: a unit of force equal to the force that imparts an acceleration of 1 m/sec/sec to a mass of 1 kilogram; equal to 100,000 dynes