51吃瓜 of the Day
tabula rasa
More about tabula rasa
First recorded in 1525鈥�35, tabula rasa is from Latin tabula r膩sa 鈥渟craped tablet, clean slate鈥�
behemoth
noun
any creature or thing of monstrous size or power: The army's new tank is a behemoth. The cartel is a behemoth that small business owners fear.
More about behemoth
The traditional etymology of the Hebrew noun behemoth is that it is an augmentative or intensive plural of 产蓹丑脓尘腻丑 鈥渂east,鈥� a derivative of the West Semitic root bhm 鈥渢o be dumb.鈥� It is also possible that Hebrew 产蓹丑脓尘腻丑 is an adaptation to Hebrew phonology of Egyptian p-ehe-mau 鈥渉ippopotamus鈥� (literally 鈥渙x of the water鈥�). Behemoth entered English in the 14th century.
how is behemoth used?
… in a play for the ideological high ground, Mr. de Blasio has cast Uber as a corporate behemoth with a singular goal.
Power – this one word sums up the rise in concerns on the left about tech behemoth Facebook.
mare
noun
Astronomy. any of the several large, dark plains on the moon and Mars: Galileo believed that the lunar features were seas when he first saw them through a telescope.
More about mare
Latin mare 鈥渟ea鈥� is obviously but irregularly derived from Proto-Indo-European mori- 鈥渂ody of water, lake.鈥� The Latin word 鈥渙ught鈥� to be more (the a is unexplained). The Proto-Indo-European mori- becomes Old Church Slavonic morje 鈥渟ea, ocean,鈥� Lithuanian 尘补谤臈 鈥渓agoon, bay,鈥� and, in the Germanic languages, English mere (i.e., a lake or a pond), German Meer 鈥渟ea, ocean,鈥� Gothic marei 鈥渟ea.鈥� Latin mare used to describe the lunar feature first appears in Michael van Langren鈥檚 map of the moon (1645). Mare first entered English in the 19th century.
how is mare used?
The wheels were large and open, and absorbed the unevenness of the mare; Malenfant felt as if he were riding across the Moon in a soap bubble.
The craft will attempt to retrieve up to 2 kilograms of soil and rock from the Oceanus Procellarum, a vast lunar mare on the near side that has yet to be visited by any spacecraft.