NEU- 



209 



NOT- 



neutrophilic, neutrophil. 



nictitant (nik'titant) a. [L. nictare, 

 to wink.] Appl. an ocellus with 

 central lunate spot (zool.}. 



nictitating membrane, the third 

 eyelid, a transparent membrane 

 which assists in keeping the eye 

 clean (zool.}. 



nidamental (nid'amgn'tal) a. [L. 

 nidus, nest.] Appl. glands which 

 secrete material for an egg-covering 

 (zool.}. 



nidation (mda'shun) n. [L. nidus, 

 nest.] The renewal of the uterus 

 lining between menstrual periods 

 (phys.\ 



nidicolous (nldlk'olus) a. [L. nidus, 

 nest ; colere, to cultivate.] Living 

 in the nest for a time after hatching 

 (zool.}. 



nidifugous (nidlf'ugus) a. [L. nidus, 

 nest ; fugere, to flee.] Leaving the 

 nest soon after hatching (zool.}. 



nidulus (nid'ulus) n, [L. dim. of 

 nidus, nest.] The nucleus from 

 which a nerve originates (anat.}. 



nidus (nl'dus) n. [L. nidus, nest.] 

 A nest ; a nest-like hollow (zool.} ; 

 a nucleus (anat.} ; a cavity for the 

 development of spores (hot.}. 



nidus hirundinalis (hirun'dlna'lTs) n. 

 A fossa of the cerebellum (anaf.). 



nigrescent (ntgrSs'6nt) a. [L. nig- 

 rescere, to turn black.] Approach- 

 ing to black in colour (zool.}. 



nipple (ntp'l) n. [Dim. of A.S. nib, 

 for neb, nose.] Mamma ; teat (anat., 

 zool.}. 



Nissl's granules, angular particles 

 found in the cytoplasm of nerve 

 cells (phys.}. 



nisus formativus (nfsus formatl'vus) 

 n. [L. niti, to strive ; formare, to 

 form.] The tendency to reproduce. 



nitid (nit'id) a. [L nitidus, shining.] 

 Glossy. 



nit id cms (nft'idus) a. [L. nitidus, 

 shining.] Glossy. 



nitrobacteria (ni'trobakte'ria) n. plu. 

 [L. nitruin, natron ; bacterium, 

 bacterium.] The nitric bacteria of 

 the soil (bot.}. 



nitrogen (nftrojgn) n. [Gk. nitron, 

 soda ; genos, descent.] An ele- 

 mentary gas composing four-fifths 

 of the volume of the atmosphere 

 (p/tys.}. 



nitrogenous (nltroj'Snus) a. [Gk. 

 nitron, soda ; genos, descent.] Pert. 

 or containing nitrogen. 



nitrogenous equilibrium, equili- 

 brium of body maintained by 

 equality of income and output of 

 nitrogen (phys.}. 



nitrophilous (nltrof'Ilus) a. [Gk. 

 nitron, soda ; philein, to love.] 

 Thriving in nitrogenous soils (dot.}. 



noctilucent (nok'tiloo'sgnt, -lu'-) a. 

 [L. nox, night ; lux, light.] Phos- 

 phorescent (biol.}. 



nocturnal (noktur'nal) a. [L. nox, 

 night.] Seeking food and moving 

 about at night, and not in the 

 day-time (zool.}. 



nodal (no'dal) a. [L. nodus, knob.] 

 Pert, a node (bot., zool.}. 



node (nod) n. [L. nodus, knob.] The 

 knob or joint of a stem at which 

 leaves arise (bot,}. 



nodose (no'dos) a. [L. nodus, knob.] 

 Having the intermediate and ter- 

 minal joints thicker than the re- 

 mainder ; having knots or swellings 

 (zool, bot.}. 



nodular (nod'ular) a. [L. nodulus, 

 dim. of nodus, knob.] Pert, a 

 nodule or knot (bot., zool.}. 



nodule (nod'ul) n. [L. nodulus, dim. 

 of nodus, knob.] A small knob- 

 like structure. 



noduliferous (nod'ullf'e'rus) a. [L. 

 nodus, knob ; ferre, to carry.] 

 Bearing a nodule ; a.ppl. roots of 

 leguminous plants (bot.}. 



nodulus (nod'ulus) n. [L. nodulus, 

 dim. of nodus, knob.] A nodule. 



nodus (no'dus) . [L. nodus, knob.] 

 A knob or node. 



nomenclature (no'me'nkla.'tur, 

 nomgn'klatur) n. [L. nomen, name ; 

 calare, to call.] System of naming 

 plants, animals, organs, etc. 



norma (nor'ma) n. [L. nornia, rule.] 

 View of the skull as a whole from 

 certain points (anat.}. 



normal (nor'mal) a. [L. norma, rule.] 

 Consistent with type or standard. 



normoblasts (nor'moblasts) n. plu. 

 [L. norma, rule ; Gk. blastos, bud.] 

 Erythroblasts, which see. 



nostrils (nSs'trilz) . plu. [A.S. 

 nosthyrl, nostril.] The external 

 openings of the nose (anat.}. 



notochordal (no'tokor'dal) a. [Gk. 

 O 



