en-, em-, el-

(Greek: in, into, inward; within; near, at; to put, to go into, or to cover with; as, entomb, encamp, enfold; to provide with; as, to enlighten; to cause to be; as, to enlarge; thoroughly; as, enmesh; in, within, into; as enzootic)

This prefix, en-, changes to em- before b, p, or ph.

enlighten (verb), enlightens; enlightened; enlightening
To make something clear to someone or to give knowledge to others.
enlightened (adjective), more enlightened, most enlightened
1. Pertaining to being educated or informed: In order to have enlightened students, Mrs. Smart always liked her students do their homework and read the newspaper regularly in order to participate in class discussions; especially, about current politics.
2. A reference to having or showing a good understanding of how people should be treated: Some TV stations have enlightened programs to keep people informed of what is going on in the world.
Relating to freedom from ignorance and misinformation.
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enthusiasm (s) (noun), enthusiasms (pl)
entice (verb), entices; enticed; enticing
To persuade someone to do something, especially by offering him or her an advantage or a reward: It didn’t take much to entice Susanne to go to the movie with Tom, since he offered to pay for her ticket and buy her some popcorn!
To encourage someone to do something for a gift.
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enticing (adjective); more enticing, most enticing
Characterising something which is appealing, interesting, fascinating, captivating, and attractive: The department store hopes that customers will find the enticing displays of merchandise a good reason to go shopping there again.
Relating to someone who is alluring and attractive.
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enzootic (adjective), more enzootic, most enzootic
Regarding a disease restricted to a locality, to a season of the year, or to a certain climate: Rabies is enzootic and is known to be prevalent all over North America.
enzyme (s) (noun), enzymes (pl)
1. A protein molecule produced by living organisms that catalyses chemical reactions of other substances without itself being destroyed or altered upon completion of the reactions: Doug learned about the importance of enzymes in that they were necessary for breaking down large molecules of fat, starch, and protein during the process of digestion.
2. A protein, or protein-based molecule, that speeds up a chemical process in a living organism: An enzyme acts as catalyst for specific chemical reactions, converting a specific set of reactants, called substrates, into specific products. Without enzymes, life as we know it would not exist.
3. Any of numerous proteins or conjugated proteins produced by living organisms and functioning as biochemical catalysts: There are at least 66 types of enzymes, including cholinesterase, coagulase, and histamines.

Enzymes are classified according to the recommendations of the Nomenclature Committee of the International Union of Biochemistry.

Each enzyme is assigned a recommended name and an Enzyme Commission (EC) number.

Enzymes are divided into six main groups, oxidoreductases, transferases, hydrolases, lyases, isomerases, and ligases.

eponychium (s) (noun), eponychia (pl)
1. The horny embryonic structure from which the nail develops.
2. The perionychium or the tissue surrounding the nail, whether it be a fingernail or a toenail, including the tissue bordering the root and sides of the nail.