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Oppenheimer (??p?n?ha?m?) n (Biography) J(ulius) Robert. 1904?67, US nuclear physicist. He was director of the Los Alamos laboratory (1943?45), which produced the first atomic bomb. He opposed the development of the hydrogen bomb (1949) and in 1953 was alleged to be a security risk. He was later exoneratedCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Op?pen?heim?er (??p ?n?ha? m?r) n. J(ulius) Robert, 1904?67, U.S. nuclear physicist. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

nutbrown (?n?t?bra?n) adjof a brownish colour, esp a reddish-brown: nutbrown hair. Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

sol·vent  (s?l?v?nt, sôl?-)adj.1. Capable of meeting financial obligations.2. Chemistry Capable of dissolving another substance.n.1. Chemistry a. A substance in which another substance is dissolved, forming a solution.b. A substance, usually a liquid, capable of dissolving another substance.2. Something that solves or explains.[French, from Latin solv?ns, solvent-, present participle of solvere, to loosen; see solve.]sol?ven·cy n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.solvent (?s?lv?nt) adj1. (Banking & Finance) capable of meeting financial obligations2. (Chemistry) (of a substance, esp a liquid) capable of dissolving another substancen3. (Chemistry) a liquid capable of dissolving another substance: water is a solvent for salt. 4. (Chemistry) the component of a solution that does not change its state in forming the solution or the component that is present in excess. Compare solute5. something that solves[C17: from Latin solv?ns releasing, from solvere to free, solve] ?solvently advCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014sol?vent (?s?l v?nt) adj. 1. able to pay all just debts. 2. having the power of dissolving; causing solution. n. 3. a substance that dissolves another to form a solution: Water is a solvent for sugar. 4. something that solves or explains. [1620?30;

ni·date (n??d?t) intr.v. ni·dat·ed, ni·dat·ing, ni·dates To become implanted in the uterus. Used of a fertilized cell. [nid(us) + -ate.] ni·da?tion n. American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.nidation (na??de???n) n1. (Biology) physiol another name for implantation22. (Zoology) physiol another name for implantation2[from Latin n?dus nest]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014ni?da?tion (na??de? ??n) n. implantation of an embryo in the lining of the uterus. [1890?95;

Ni·be·lung·en·lied  (n??b?-lo?ong??n-l?d?)n. A Middle High German epic poem written in the early 1200s and based on the legends of Siegfried and of the Burgundian kings.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Nibelungenlied (?ni?b?l???nli?t) n (Poetry) a medieval High German heroic epic of unknown authorship based on German history and legend and written about 1200[literally: song of the Nibelungs]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Ni?be?lung?en?lied (?ni b??l?? ?n?lit) n. a Middle High German epic of c1200, telling of the wooing of Brunhild by the hero Siegfried on behalf of Gunther, the marriage of Siegfried and Kriemhild, the murder of Siegfried by Hagen, and Kriemhild’s subsequent revenge. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Nae´vose`a.1.Spotted; freckled.Webster’s Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.

multichain (?m?lt??t?e?n) adj (Chemistry) comprising or involving several chains, esp (in chemistry) of a linear polymerCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

mi·to·gen  (m??t?-j?n)n. An agent that induces mitosis.[mito(sis) + -gen.]mi?to·gen?ic (m??t?-j?n??k, m?t??-) adj.mi?to·ge·nic?i·ty (-j?-n?s??-t?) n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.mitogen (?ma?t?d??n) n (Biology) any agent that induces mitosis mitogenic, mitogenetic adjCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014mi?to?gen (?ma? t? d??n, -?d??n) n. any substance or agent that stimulates mitosis. [1950?55; mito (sis) + -gen] mi`to?gen?ic (-?d??n ?k) adj. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

meiosistop to bottom:In meiosis a parent cell replicates and recombines, divides once to create two daughter cells, then divides again creating four daughter cells, each of which has half the genetic content of the original parent cell.mei·o·sis  (m?-??s?s)n. pl. mei·o·ses (-s?z?) 1. Genetics The process of cell division in sexually reproducing organisms that reduces the number of chromosomes from diploid to haploid, as in the production of gametes.2. Rhetorical understatement.[Greek mei?sis, diminution, from meioun, to diminish, from mei?n, less; see mei- in Indo-European roots.]mei·ot?ic (-?t??k) adj.mei·ot?i·cal·ly adv.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.meiosis (ma????s?s) n, pl -ses (-?si?z) 1. (Biology) a type of cell division in which a nucleus divides into four daughter nuclei, each containing half the chromosome number of the parent nucleus: occurs in all sexually reproducing organisms in which haploid gametes or spores are produced. Compare mitosis See also prophase22. (Rhetoric) rhetoric another word for litotes[C16: via New Latin from Greek: a lessening, from meioun to diminish, from mei?n less] meiotic adj mei?otically advCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014mei?o?sis (ma??o? s?s) n. 1. part of the process of gamete formation in sexual reproduction consisting of chromosome conjugation and two cell divisions after which the chromosome number is reduced by half. Compare mitosis. 2. expressive understatement, esp. litotes. [1580?90;

Mer·o·vin·gi·an  (m?r??-v?n?j?-?n, -j?n) A Frankish ruling dynasty (c. ad 450-751) founded by Merovech (fl. fifth century) and brought to prominence by Clovis I.Mer?o·vin?gi·an adj.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Merovingian (?m?r???v?nd???n) adj (Historical Terms) of or relating to a Frankish dynasty founded by Clovis I, which ruled Gaul and W Germany from about 500 to 751 adn (Historical Terms) a member or supporter of this dynasty[C17: from French, from Medieval Latin Merovingi offspring of Merovaeus, Latin form of Merowig, traditional founder of the line]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014