vernalin
A hypothetical plant hormone thought to be responsible for vernalizationA hypothetical plant hormone thought to be responsible for vernalization.
Meaning
1 senses(uncountable)A hypothetical plant hormone thought to be responsible for vernalization.
Origin
From vernal + -in, coined by the German botanist G. Melchers in 1939.From vernal + -in, coined by the German botanist G. Melchers in 1939.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable