PILULAR 



1102 



PINEAL 



pharmacy, a spheric mass containing a prescribed 

 medicinal substance with the excipient necessary to 

 make it cohesive. The excipient may be soap and 

 water, a gum, or one of the various syrups. There 

 are 15 official pilule. See names, constituents, etc., 

 under principal ingredient. 



Pilular (pil'-u-lar) \_pilula, dim. of pila, ball]. Of the 

 nature or form of a pill. 



Pilule (pil'-ul) \_pilula, a small pill]. A small pill, 

 pellet, or parvule. 



Pilulous (pil'-u-lus). Same as Pilular. 



Pilum {pi'-luni) [L.]. In pharmacy, a pestle. 



Pilus (pi'-lus) \_pilus-, a hair : pi., Pili']. In biology, 

 a fine, slender, hair-like body. Pili gossypii, cotton 

 staple. Pili tactiles, tactile hairs. 



Pimeladen (pim-el' -ad-en) [■Ktfj.e'kri, fat ; adrjv, gland : 

 //. , Pimeladenes\ Any sebaceous gland. 



Pimelecchysis (pim-el-ek' -kis-is) [irijiehfy, fat ; subvene, 

 a pouring out]. An excessive discharge of fat or of 

 sebaceous matter. 



Pimelic Acid (pim-el'-ik). See Acid. 



Pimelitis (pim-el-i'-tis) [tuimeItj, fat ; trig, inflamma- 

 tion] . Inflammation of any adipose tissue ; also, of 

 connective tissue in general. 



Pimeloma (pim-el-o' -mah) [tti/ie?^, fat ; dfia, tumor : 

 pi. , Pimelomata']. A fatty tumor ; lipoma. 



Pimelopterygium [pirn' ' -el-o-ter-ij' '-e-um) \jvifiElrj, fat ; 

 nTEpvjiov, a small wing]. A fatty outgrowth on the 

 conjunctiva. 



Pimelorrhea (pim-el-or-e'-ah) \_TUfislr], fat ; poia, a 

 flow] . An excessive fatty discharge. Fecal discharge 

 of undigested fat. 



Pimelorthopnea (pim-el-or-thop-ne' '-ah) [irifish}, fat ; 

 bpd6nvoia, orthopnea]. Orthopnea due to obesity. 



Pimelosis (pim-el-o' -sis) \jrifiE\rj, fat; voaor, disease]. 

 Conversion into fat. The fatty degeneration of any 

 tissue; obesity, or corpulence. 



Pimelotic (pim-el-of -ik) [ttiihe^, fat]. Affected with 

 pimelosis. 



Pimeluria (pim-el-u' '-re-ah)\ni^EATj , fat ; ovpnv, urine]. 

 The excretion of fat in the urine ; lipuria. 



Pimenta {pi-men' -tah) [Sp. ,pimiento, the pepper-plant : 

 gen., Pimento;']. Allspice. The immature fruit of 

 Pimenta officinalis. It contains an aromatic, pungent, 

 volatile oil that is much used as a flavor and condi- 

 ment. It is useful in flatulence and to prevent the 

 griping of purgatives. Dose gr. x-xl. P., Aqua 

 (B. P.) Dose ^ss-ij. P., Oleum (B. P.) Dose 

 n\j-iv. 



Pimento (pi-men'-to). Synonym of Pimenta. 



Pimpernel (pim'-per-nel) [ME., pympyrnel, pimper- 

 nel]. See Anagallis arvcnsis. 



Pimpinella ( pim-pin-el' -ah) [Fr. , pimpernel], A genus 

 of umbelliferous plants, the pimpernels. 



Pimple [pirn' -pi) [AS., pipel, a pimple]. A small 

 pustule or papule. See Papule and Pustule. P., 

 Maggot, a popular term for Comedo. P. Mite. See 

 Demodex folliculorum , under Parasites (Animal), 

 Table of. 



Pimply (pirn' -pie) [AS,., pipel, a pimple]. Spotted; 

 covered with pimples. 



Pin [ME., pinne, a pin]. A metal instrument shaped 

 like a needle, but with a globular head, used for fasten- 

 ing or holding parts together. P. -buttock, a sharp, 

 angular buttock. P., Center, the pointed steel rod 

 projecting from the center of the trephine-saw, used 

 for fixing the trephine. P., Harelip, a strong, long 

 pin passed through the lips of a wound in order to 

 form a support for the sutures which are wound around 

 it. P. -sensation. See Pins and A r eedles. P.- 

 worm. See Oxyuris vermicularis among Parasites 

 (Animal), 7 able of. 



Eyeglasses kept in 



Forceps. 



Small forceps. 



Pinacocytal (pin-ak-o-si'-tal) [niva^ , a tablet ; Kbrog 

 a cell]. Pertaining to pinacocytes. 



Pinacocyte (pin'-ak-o-slt) \jrtvaS, , a tablet; /c/toc, a 

 cell]. In biology, one of the simple, pavement, epi- 

 thelial cells composing the ectoderm of most sponges. 



Pinacolin (pin- ak'- 0- lin), CgH^O. A ketone ob- 

 tained from pinacone by the action of hydrochloric 

 acid with heat. The pinacolins are ketones contain- 

 ing a tertiary, alky] group, formed from the pinacones. 



Pinacone (pin'-ak-on), C 6 H u 2 . A diatomic alcohol 

 which crystallizes from its aqueous solution in the 

 form of the hydrate, C 6 H u 2 + CH 2 0, which consists 

 of large, quadratic plates, melting at 42 C. and gradu- 

 ally efflorescing on exposure. In the anhydrous state 

 it is a crystalline mass that melts at 38 C. and boils at 

 171 or 172 C. The pinacones are glycols that con- 

 tain two hydroxyl groups attached to two adjoining 

 carbon atoms, which in turn are linked to two alkyls. 



Pinalic Acid (pin-al'-ik). See Acid, Valeric. 



Pince-cystotome (pans' '-sis' '-to-tom) \_pince (Fr.), for- 

 ceps; kvgtlq, bladder ; ro/ur/, a cutting]. An instru- 

 ment terminating in two triangular cutting-blades, 

 and which is used as a cystotome in cataract-opera- 

 tions. 



Pincement (pans' -ma(n)g) [Fr., "pinching"]. In 

 massage, a pinching or nipping of the tissues ; it is 

 useful in neurasthenia. 



Pince-nez (pans'-na) [Fr.]. 

 place on the nose by a spring. 



Pincers (pin'-sers) [Fr., pince]. 



Pincet, Pincette (pin-set') [Fr.]. 



Pincofnn (pin'-koff-in). Same as Azale. 



Pindal, Pindar, Pinder (pin' -dal, pin' -dar, pin' -der). 

 See Arachis hypogaa. 



Pine (pin) \_pinus, pine]. See Pix. P.-apple Fiber, 

 the leaves of the several varieties of Bromelia yield a 

 fine, nearly colorless, fiber, which is worked, especially 

 in Brazil, for the manufacture of the so-called "silk- 

 grass." P.-apple Oil, an alcoholic solution of ethyl 

 butyric ether. P. -bark, a bark that is much used in 

 Austria, Bavaria, and Southern Germany in themanufac- 

 ture of leather. It contains from seven to ten per cent, 

 of tannin and considerable resinous extractive matter. 

 It does not yield as good a leather as oak-bark. P- 

 bath. See Bath. P. -gum, a variety of sandarach, 

 from the Australian trees Callitris robusia and C. rhom- 

 boidea. P. -needle Bath, a bath in which pine or tir 

 needles are mixed with the water ; it is used in Ger- 

 many as a stimulant tonic. 



Pineal (pi-ne'-al) [pinus, 

 to or shaped like a pine- 

 cone. P. Body (so 

 called from its resem 

 blance in shape to s 

 pine-cone), a small, red 

 dish-gray, vascular body % 

 situated behind the third 

 ventricle, which is em- 

 braced by its two pedun- 

 cles ; it is also called 

 the conai-ium, from its 

 conic shape. It rests 

 upon the pregeminum, 

 and is connected with 

 the thalami by two pe- 

 duncles. Its function is 

 unknown. It is consid- 

 ered to be the remains 

 of the pineal eye of lower vertebrates. P. Eye, 

 a rudimentary third, median or unpaired eye of certwn 

 lizards (Anguis, Hatteria, Veranus, Calotes, 

 Leiodera), connected with the homologue oi thepinwl 



Section of Human Pineal 



Body. 

 a, a. Acini lined and 

 filled with epithelium am! 

 calcareous concrel 

 /. Intertubular fibrous tis- 

 sue. (After Piersoh) 



