Definition of entrance cone
1
: the protuberance of cytoplasm through which the fertilizing sperm enters an egg
2
: the portion of a wind tunnel from which the air flows to the test section
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“Entrance cone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/entrance%20cone. Accessed 22 Jun. 2021.
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