Word: 
Words and phrases whose definition contains unknown:  (79 results)
basque, chance, class, creche, drift, gnetales, ka, luck, sars, trove
chartless, explore, folk art, fortune, foundling, hazard, jane doe, john doe, nameless, somewhere, test-cross, testcross, unmapped, unnamed
crystallite, elamite, order gnetales, potter's field, quadratic, richard roe, susian, timidness, titration, treasure trove, ufo, uncertain, uncharted, unheard-of
collywobbles, elamitic, eliminate, flying saucer, timidity, timorousness, unknown region
abandoned infant, cholera morbus, elimination, essential tremor, foundling hospital, idiopathic, idiopathy, over and over, sarcoidosis, unidentified, unknown quantity, unpredictable
agglutination test, cardiomyopathy, kawasaki disease, landry's paralysis, neurodermatitis, quadratic equation, terra incognita
idiopathic disease, infectious polyneuritis, myocardiopathy, over and over again
idiopathic disorder, nonspecific urethritis
unidentified flying object
mucocutaneous lymph node syndrome
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