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E. coli a species of bacteria, present in the intestines of all vertebrates, that is widely used in biological research.
ecological of or pertaining to ecology.
ecology the scientific study of the relationships between living things and their environments. [2 definitions]
e-commerce the exchange of goods and services conducted on the Internet; electronic commerce.
econometrics (used with a sing. verb) the application of mathematical and statistical methods to research in economics.
economic of or pertaining to the production and distribution of goods, wealth, and services. [3 definitions]
economical wasting little; thrifty; frugal.
economically in an economical manner. [2 definitions]
economics (used with a sing. verb) the systematic study of the production and distribution of goods and services. [2 definitions]
economist a person who has expertise in the study of economics.
economize to practice thrift; avoid wasteful expenditure; be economical. [2 definitions]
economy the careful management of wealth, resources, and means of production. [5 definitions]
ecosystem a community of living things, together with their environment.
ecotourism recreational travel to areas of natural or ecological interest carried out in a manner that respects the visited environment.
ecru a pale yellowish or grayish tan color.
ecstasy an emotional state of intense pleasure or joy. [2 definitions]
ecstatic in a condition of extreme delight, overpowering emotion, or religious trance; enraptured. [2 definitions]
ecto- outside; outer.
ectoderm an animal embryo's outermost layer of cells, from which the skin, nervous system, and sense organs develop.
ectomorphic of a slender, lightly muscled body structure. (Cf. endomorphic, mesomorphic.)
-ectomy removal by surgery; excision.