What is a meta nucleus in context of biology?

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The discussion centers on the term "metanucleus" in the context of botany and biology, specifically relating to flower anatomy. A student seeks clarification after a teacher mentioned that the term could be an alternative name for polar bodies. Research led to a definition from a medical dictionary, identifying the metanucleus as the egg-nucleus after its extrusion from the germinal vesicle. There is speculation that the teacher might have been referring to a nucleus in a metastable state, but the primary focus remains on understanding the metanucleus's role in reproductive biology.
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So, I was in botany class the other day and we were going over the model of a flower describing the parts. The ovum, the egg and polar bodies and someone said another name for the polar bodies and my teacher said she would accept the answer if we knew what a meta nucleus is.

Naturally no one knew, so that's why I'm here, does anyone know what this means in the context of biology?

I did a search and came up with nothing, except this chemistry book that refers to meta protons in relation to the meta nucleus.

Physical Chemistry: A Molecular Approach
 
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Perhaps your teacher meant a nucleus within a metastable state? (I.e. excited)
 
I found the answer in a medical dictionary. According to said text it is

Metanucleus: The egg-nucleus after its extrusion from the germinal vesicle


The Practitioner's Medical Dictionary
 

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