nucleus vs spore

nucleus

noun
  • A large membrane-enclosed organelle found in eukaryotic cells which contains genetic material. 

  • The central part of a syllable, most commonly a vowel. 

  • The core, central part of something, around which other elements are assembled. 

  • An initial part or version that will receive additions. 

  • The massive, positively charged central part of an atom, made up of protons and neutrons. 

  • A ganglion, cluster of many neuronal bodies where synapsing occurs. 

spore

noun
  • A reproductive particle, usually a single cell, released by a fungus, alga, or plant that may germinate into another. 

  • A thick resistant particle produced by a bacterium or protist to survive in harsh or unfavorable conditions. 

verb
  • To produce spores. 

How often have the words nucleus and spore occurred in a corpus of books? (source: Google Ngram Viewer )