[ ey-tuh-see, ee-tuh- ]
/ ˈeɪ təˈsi, ˈi tə- /
a neutral meson having a mass 5832 times that of the electron and a mean lifetime of approximately 3.1 × 10-22 seconds.
IT’S A WORD OF THE DAY QUIZ BONANZA!
This windfall of words will make you rich with knowledge. Mine your memory on the words from July 27 to August 2!
Question 1 of 7
What does "scattergood" mean?
a person who acts as though he or she knows everything and who dismisses the opinions, comments, or suggestions of others.
a person who spends possessions or money extravagantly or wastefully; spendthrift.
a well-intentioned but naive and often ineffectual social or political reformer.TAKE THE QUIZ TO FIND OUT
Also called eta-c particle.
Words nearby eta-c meson
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020