nounπShareThe series of bones situated at the back from the head to the pelvis of a person, or from the head to the tail of an animal; backbone, vertebral column."My grandfather, who is over 80, has a slight curvature in his spine. "bodyanatomyorganstructuremedicineanimalphysiologyChat with AIVocabulary GamePractice Reading
nounπShareSomething resembling a backbone, such as a ridge, or a long, central structure from which other structures radiate."The new tent's spine ran down the center of the fabric, providing support for the poles. "anatomystructurebiologybodyorganpartChat with AIVocabulary GamePractice Reading
nounπShareA pointed, fairly rigid protuberance or needle-like structure on an animal, shell, or plant."The cactus had sharp spines that made it difficult to handle. "animalplantanatomybiologyorganismstructurepartnatureChat with AIVocabulary GamePractice Reading
nounπShareThe heartwood of trees."The carpenter used the spine of the fallen tree to build a sturdy support beam. "plantmaterialChat with AIVocabulary GamePractice Reading
nounπShareCourage or assertiveness."Despite the criticism, she showed a lot of spine and defended her project. "characterattitudeabilityChat with AIVocabulary GamePractice Reading
nounπShareThe stiffness of an arrow."The archer carefully checked the spine of the arrow to ensure it was stiff enough for a good shot. "sporttechnicalChat with AIVocabulary GamePractice Reading