noun🔗ShareNuceloThe tissue which surrounds and protects the embryo and lies inside of the integuments."The scientist carefully dissected the ovule to examine the nucellus, the protective tissue surrounding the developing plant embryo. "El científico diseccionó cuidadosamente el óvulo para examinar el nucelo, el tejido protector que rodea el embrión vegetal en desarrollo.biologyplantseedanatomypartstructureChat with AIVocabulary GamePractice Reading