noun🔗Shareالعجز(of birds) The bone composed of the sacrum and some lumbar or caudal vertebrae fused together."During the bird skeleton lesson, the teacher pointed to the fused vertebrae and explained, "This section, the synsacra, provides crucial support for flight and landing." "خلال درس هيكل الطائر، أشار المعلم إلى الفقرات المندمجة وشرح: "هذا الجزء، العجز، يوفر دعماً حاسماً للطيران والهبوط".anatomybirdbodyorganismanimalphysiologyChat with AIVocabulary GamePractice Reading