| arroyo | (noun) a stream or brook | - |
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| billyo | (noun) an unimaginably large amount | Synonyms: all get out, billy-ho, billyoh |
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| embryo | (noun) an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life | Synonyms: conceptus, fertilized egg |
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| (noun) (botany) a minute rudimentary plant contained within a seed or an archegonium | - |
| kayo | (noun) a blow that renders the opponent unconscious | Synonyms: knockout, KO |
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| (verb) knock unconscious or senseless | Synonyms: knock cold, knock out |
| mayo | (noun) egg yolks and oil and vinegar | Synonyms: mayonnaise |
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| yatobyo | (noun) a highly infectious disease of rodents (especially rabbits and squirrels) and sometimes transmitted to humans by ticks or flies or by handling infected animals | Synonyms: deer fly fever, rabbit fever, tularaemia, tularemia |
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