noun
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
noun
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
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012