n.

an extra component of a machine or other apparatus

同義詞：spare part

an extra car wheel and tire for a four-wheel vehicle

同義詞：fifth wheel

a score in tenpins; knocking down all ten after rolling two balls

Spared nerve injury: an animal model of persistent peripheral neuropathic pain.
Studies of hematopoietic stem cells spared by 5-fluorouracil.
Degeneration of Spared Axons Following Partial White Matter Lesion: Implications for Optic Nerve Neuropathies
Is blindsight an effect of scattered light, spared cortex, and near-threshold vision?
During autophagy mitochondria elongate, are spared from degradation and sustain cell viability
Recurrence in region of spared parotid gland after definitive intensity-modulated radiotherapy for head and neck cancer.
Under what conditions is recognition spared relative to recall after selective hippocampal damage in humans?
False resurrections: distinguishing regenerated from spared axons in the injured central nervous system
Impaired spatial working memory but spared spatial reference memory following functional loss of NMDA receptors in the dentate gyrus
Selective increase of tumour necrosis factor-alpha in injured and spared myelinated primary afferents after chronic constrictive inj...