15-crown-5
The crown ether 1,4,7,10,13-PentaoxacyclopentadecaneThe crown ether 1,4,7,10,13-Pentaoxacyclopentadecane.
Meaning
1 senses(uncountable)The crown ether 1,4,7,10,13-Pentaoxacyclopentadecane.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable