Term: stiffness: the property of moving with pain or difficulty
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: echidna: a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to New Guinea
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: scrotal vein: veins passing from the scrotum to the pudendal veins
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: vandalism: willful wanton and malicious destruction of the property of others
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: integrator: a measuring instrument for measuring the area of an irregular plane figure
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: canada porcupine: porcupine of northeastern North America with barbed spines concealed in the coarse fur; often gnaws buildings for salt and grease
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: prosopis: genus of tropical or subtropical branching shrubs or trees: mesquite
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: oboe d'amore: an oboe pitched a minor third lower than the ordinary oboe; used to perform baroque music
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: sand cherry: small straggling American cherry growing on sandy soil and having minute scarcely edible purplish-black fruit
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: gurgle: the bubbling sound of water flowing from a bottle with a narrow neck
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: torpediniformes: rays with bodies shaped like torpedoes