UNIQUE WORDS game to increase our vocabulary - alphabetical order

Touchstone:  a hard black stone, such as jasper or basalt, formerly used to test the quality of gold or silver by comparing the streak left on the stone by one of these metals with that of a standard alloy.

an excellent quality or example that is used to test the excellence or genuineness of others.

Verisimilar: appearing to be true or real; probable.

Xenic - something that Containing an unidentified organism

 pine:

Xenic - something that Containing an unidentified organism

Yardstick:  a graduated measuring stick one yard in length

a test, standard, or model used in measurement, comparison, or judgment

 Lee chae yeon:

Zalambdodont - having molar teeth with two ridges that meet at an angle 

Argle-bargle — copious but meaningless talk or writing

 Queer:

Eagre: 

sudden rise of tide in a river

your supposed to play the game alphabetically

Carpe diem  is a Latin aphorism, usually translated "seize the day"