| epidemic | (noun) a widespread outbreak of an infectious disease; many people are infected at the same time | - |
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| epidemiologist | (noun) a medical scientist who studies the transmission and control of epidemic diseases | - |
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| epidemiology | (noun) the branch of medical science dealing with the transmission and control of disease | - |
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| epidendron | (noun) any of various orchids of the genus Epidendrum | - |
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| epidermis | (noun) the outer layer of the skin covering the exterior body surface of vertebrates | Synonyms: cuticle |
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| hyperlipidemia | (noun) presence of excess lipids in the blood | Synonyms: hyperlipaemia, hyperlipemia, hyperlipidaemia, hyperlipoidaemia, hyperlipoidemia, lipaemia, lipemia, lipidaemia, lipidemia, lipoidaemia, lipoidemia |
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| lipide | (noun) an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates) | Synonyms: lipid, lipoid |
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| lipidemia | (noun) presence of excess lipids in the blood | Synonyms: hyperlipaemia, hyperlipemia, hyperlipidaemia, hyperlipidemia, hyperlipoidaemia, hyperlipoidemia, lipaemia, lipemia, lipidaemia, lipoidaemia, lipoidemia |
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| spider | (noun) predatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey | - |
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| (noun) a skillet made of cast iron | - |
| (noun) a computer program that prowls the internet looking for publicly accessible resources that can be added to a database; the database can then be searched with a search engine | Synonyms: wanderer |
| spiderflower | (noun) any of various often strong-smelling plants of the genus Cleome having showy spider-shaped flowers | Synonyms: cleome |
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| spiderwort | (noun) any plant of the family Commelinaceae | Synonyms: dayflower |
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