bean sprout vs outgrowth

bean sprout

noun

  • A sprout of any of several other species of bean 

  • A sprout of the mung bean. 

  • A sprout of the soybean. 

outgrowth

noun

  • A branch or offshoot of a plant. 

  • An appendage of an animal. 

  • Excessive growth. 

  • A byproduct or consequence of an action or event. 

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