noun Download 🔗Share The contents or substance of the ovum; egg yolk. Examples : "The developing chick embryo receives nutrients from the vitellus, or yolk, inside the egg. " physiology biology anatomy food Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share Perisperm in an early condition. Examples : "The botanist carefully examined the young seed, noting that the vitellus, still soft and undeveloped, surrounded the emerging embryo. " biology seed plant Chat with AIVocabulary GamePractice Reading