HCA 



265 



PINE 



mother.] A vascular fibrous tissue closely 

 investing the brain and spinal cord. 



Pica, (pi'ka). [The Latin name.] Magpie, 

 <fec. v. Pices. 



Picse, (pi'se). [Pica, q.v.] Magpies, &c.: a 

 family of birds, with short legs, sharp bills, 

 and building their nests in trees; include a 

 large number of varieties. 



Picamar, (pik'a-mar). [L. pix, pitch; amarus, 

 bitter.] A bitter, oily substance obtained 

 from tar. 



Pico, (pi'ko). An isolated peak in the moon, 

 . 7000 ft. high. 



Picoline, (pik'6-lln). [L. pix, pitch.]=C 6 H 7 N: 

 an oily liquid obtained from tar; a base be- 

 longing to the pyridine series. 



Picramio acid, (pik'ra-mik). [Picric and 

 Amide, g.v.]=CeH 5 N3O5: an amidated acid 

 derived from picric acid. 



Picric acid, (pik'rik). [L. picris, bitter.] 

 CgHsNsO^ = Carbazotic acid, q.v. ; named 

 from its bitter taste. 



Picris, (pik'ris). [L. pilcris, bitter.] An herb, 

 with milky juice, belonging to Asteracese. 



Picrotoxin, (pik-ro-toks'in). [Gk. pikros, bit- 

 ter; toxicon, poison. J^CsHgOa: a bitter, 

 poisonous substance found in Cocculus In- 

 dicus. 



Picryl, (pik'ril). [Picric, q.v.; Gk. hyle, ma- 



. terial.] The radicle of picric acid, &c. 



Picus, (pl'kus). [The Latin name.] Wood- 

 pecker : a small insectivorous climbing 

 bird. 



Piezometer, (pl-e-zom'e-ter). [Gk. piezo, I com- 

 press; metron, measure.] An instrument for 

 measuring the compressibility of liquids. 



pi T> (pig)- [Pige, the A.-S. narne.]=Sus: 

 an omnivorous quadruped, the type of 

 Suidse, q.v. P.-iron: a block of rough cast- 

 iron. 



Pigeon, (pij'un). [The French name.]=Co- 

 lumba: a poultry-like 

 bird belonging to Ra- 

 sores. v. ColumbidsR. 

 Tooth -billed P. Di- 

 dunculus strigirostris, 

 q.v. P. pea: seed of 

 Cajanus or Cytisus ca-^ 

 jan; also called angola 

 tree. 



Pigment, (pig'ment). Pigeon. 



[L. pigmentum, the Latin word.] Any sub- 

 stance used as a paint. P. cells: in the eye, 

 lining the choroid coat, and in contact with 

 the retina. 



Pigments. Paints: e.g., black, burnt ivory, 

 wood, &c,; blue, lapis lazuli, &c. ; brown, 

 bitumen, &c. ; green, carbonate of copper, 

 oxide of chromium, &c. ; red, bisulphide of 

 mercury, <fec. ; white, carbonate of lead, 

 barytes, &c. ; yellow, chromate of lead, <fcc. 



Pignut. 1. Fruit of Carum bulbocastanum. 

 2. Fruit of Bunium 

 flexuosum. 



Pike, (pik). [Pique, 

 the French name.]= 

 Esox lucius: a fish 

 belonging to Esoci- Pike. 



dze, q.v. Bony P. =Lepidosteus. 



Pilaster, (pi-las'ter). [Pilastre, 

 the French word.] A flat co- 

 lumn, forming part of a wall, 

 of which only a small portion 

 projects from the surface. 



Pilchard, (pil'chard). = Clupea 

 pilchardus: a herring-like fish, 

 belonging to Clupeidse. 



Pile, (pil). [L. pila, pillar.] Dry 

 P.: a voltaic battery in which 

 a solid substance (such as paper) ; 

 which absorbs water is used, in- Pilaster, 

 stead of a liquid. P. of Volta: a series of 

 discs of copper and zinc, arranged as a gal- 

 vanic battery. P. toori= Ranunculus picaria. 

 P- dwellings=L&k.e dwellings, q.v. Nobili's 

 P.: v. Nobili's. 



Pilidium, (pi-lid'i-um). [Gk. pilidion, small 

 cap.] The larva of Nemertes, named from 

 its helmet shape. 



Pilifera, (pil-if'er-a). [L. pilus, hair; fero, I 

 bear.] De Blainville's term for Mammalia. 



Pill. P. beetle = Byrrhus : named from the 

 rounded shape, v. Byrrhidae. P. wort= 

 Pilularia, q.v. 



Pillars of the diaphragm. Muscular fibres 

 connecting the diaphragm with the spinal 

 column. 



Pilot. P. ^sA=Naucrates ductor=Gasteros- 

 teus ductor: belongs to Scorn beridaj; named 

 from being supposed to guide sharks to food. 

 P. ic/(a?e=Globiocephalus svineval. 



Pilton group = Upper Devonian, v. Devonian. 



Pilularia, (pil-u-la'ri-a). [L. pilula, pill.] Pill- 

 wort: an aquatic plant belonging to Marsi- 

 liaceae. 



Pimelic acid, (pim'e-lik). [Gk. pimele, fat.] 

 =C7Hi2C>4: a crystalline substance formed 

 from the action of nitric acid on oleic acid. 



Pimelite, (pim'e-lit). [Gk. pimele, fat; lithos, 

 stone. ] A mineral, chiefly silicate of nickel, &c. 



allspice, 

 Pimpernel, (pim'per-nel). [Pimprenelle, the 



French name.]=Anagallis; a plant belonging 



to Primulacese. Bastard P. =Centunculus. 



Yellow P.=Lysimachia nemorum. 

 Pimpinella, (pim-pi-nel'la). [L. bis, twice; 



pennula, little wing.] Burnet saxifrage: an 



herb belonging to Apiacese, named from the 



leaves being doubly pinnated. P. anisum= 



Anise. 

 Pinacese, (pi-na'se-e). [Pinus, <7.T;.]=Conifers: 



evergreen resinous trees, with naked flowers, 



belonging to Gymnogens.l 

 Pinchbeck, (pinch'bek). A gold-coloured alloy 



of J zinc and f copper. 

 Pine, (pin). [Pinus, the Latin 



name. ]== Pinus, Q.V. Labrador 



P. =Pinus Banksiana. Jersey 



P.=Pinusinops. Scotch P. = 



Pinus sylvestris. Ground P. 



=Ajuga chamsepitys. Nut 



P. = Pin us monophyllus. P. 



appie=Ananassa sativa. P, 



marten = Martes abietum = 



Musteta abietum. P. sawfty Pine-apple. 



Pimento, (pi-men'to). [Sp. pimento, Indian 

 pepper.]=Eugenia P.=Myrtus P. : a tree be- 

 longing to Myrtacese, the fruit of which is 



