noun🔗ShareArquegonioA multicellular reproductive structure that contains a large, non-motile gamete (egg cell), and within which an embryo will develop."The botanist carefully examined the moss plant, looking for the tiny archegonium where the egg cell would be fertilized. "El botánico examinó cuidadosamente la planta de musgo, buscando el diminuto arquegonio donde se fertilizaría la célula huevo.biologyplantorganismstructureseedsexnatureChat with AIVocabulary GamePractice Reading