oestrone
US estrone
/ (ˈiːstrəʊn, ˈɛstrəʊn) /
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noun
a weak oestrogenic hormone secreted by the mammalian ovary and having the same medical uses as oestradiol. Formula: C 18 H 22 O 2
QUIZZES
QUIZ YOURSELF ON PARENTHESES AND BRACKETS APLENTY!
Set some time apart to test your bracket symbol knowledge, and see if you can keep your parentheses, squares, curlies, and angles all straight!
Question 1 of 7
Let’s start with some etymology: What are the origins of the typographical word “bracket”?
First appeared around 1750, and is related to the French word “braguette” for the name of codpiece armor.
First appeared in 1610, based on the French word “baguette” for the long loaf of bread.
First appeared in 1555, and is related to the French word “raquette” for a netted bat.
TAKE THE QUIZ TO FIND OUT Word Origin for oestrone
C20: from oestr (us) + -one
Words nearby oestrone
oestradiol, oestrid, oestrin, oestriol, oestrogen, oestrone, oestrous, oestrous cycle, oestrus, oeuvre, of
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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