Gymnasium (ancient Greece) the Greek noun γυμνάσιον ("gymnasion"), "gymnastic school", in pl. "bodily exercises" and generally "school" which in turn is derived from the common Greek adjective ("gymnos") meaning "naked", by way of the related verb γυμνάζω ("gymnazo"), whose meaning is "to train naked", "train in gymnastic exercise", generally "to train, to exercise". The verb had this meaning because one undressed for exercise. Historically, the gymnasium was used for exercise, communal bathing, and scholarly and philosophical pursuits. The English noun "gymnast", first recorded in 1594, is formed from the Greek γυμναστής ("gymnastēs"), but in Greek this word means "trainer" not "gymnast". The "palaistra"
Acmella nana from China in September 2015. The genus name "Acmella" is derived from a Greek word "akme" meaning "(the highest) point, edge or peak of anything." The species name "nana" was derived from a Latin word "nanus" meaning "dwarf", and was chosen because of its small size. "Acmella nana" has a shell, which is whitish in colour and has a shiny appearance. The shell is translucent and measures 0.50 to 0.60 mm in width, and 0.60 to 0.79 mm in height. In average the size is 0.7 mm. Due to its size, it cannot be directly noticed by naked eye, and