

PECTIXIFORM 



1031 



PEDICLE 



Pectiniform (pek-tin'-iform) [pecten, a comb; forma, 

 a form]. Having the form of or resembling a comb. 

 Fimbriated or serrated. P. Septum. See Septum. 



Pectinose (pek'-tin-oz). Same as Arabinose. 



Pectize | pek'-tiz) [-r/Kroc, fixed, congealed]. In bi- 

 ology, to congeal or form jelly. Cf. Pectin. 



Pecto-antibrachialis ( pels'- to - an- te - bra - ke- a' -lis) 

 us, breast: antibrachium, the forearm]. In 

 biology, a muscle extending from the sternum to the 

 elbow of certain animals. 



Pectocaulis (pek-to-kaw'-lis) [pecten, comb; caulis, 

 stem: //., Pectocauli~\. In biology, the common 

 stalk of the polypides of a polyzoary. 



Pectoral (pek'-to-ral) [pectus, breast]. Pertaining to 

 the breast. Of a medicine, useful in diseases of the 

 ratory tract. P. Fin, the thoracic limb of a fish. 

 P. Fremitus, vocal fremitus of the chest. P. Glands, 

 lymph-glands along the lower border of the pectoralis 

 major muscle. P. Laminae, the basal joints of the 

 legs. P. Limb, the anterior or upper limb of a ver- 

 tebrate animal. P. Muscles. See Muscles, Table 

 P. Nerves, the cutaneous branches of the thoracic 

 intercostal nerves. P. Ridge, the anterior or external 

 bicipital ridge of the humerus. P. Species. See Breast- 

 tea. P. Tubercle, the impression on the anterior surface 

 of the clavicle for the attachment of the pectoralis 

 major muscle. 



Pectoralgia ( pek-tor-al' -je-ah) [pectus, breast ; a'/.joc, 

 pain]. Neuralgic pain in the breast. 



Pectoralis (pek-tor-a'-lis). See Muscles, Table of. 



Pectoriloquism (pek-tor-il'-o-kurizm). Same as Pec- 

 tori I: 



Pectoriloquy (pek-tor-il' -o-kive)[ pectus, breast; loqui, 

 to speak]. The distinct transmission of articulate 

 speech to the ear on auscultation. It may be heard 

 over cavities in the lung, over areas of consolidation 

 near a large bronchus, over a pneumothorax when 

 the opening in the lung is patulous ; over some pleural 

 effusions. P., Whispering, the transmission of the 

 whispered words to the auscultating ear. The sounds 

 seem to emanate directly from the spot auscultated. 



Pectorophony (pek-tor-off'-o-ne) [pectus, breast ; oux-i], 

 sound]. Exaggerated vocal resonance, as heard in 

 auscultating the chest. 



Pectose (pek'-toz) [-r/Kroe, fixed]. A compound oc- 

 curring in fruits, intermediate between starch and glu- 

 cose. Its exact composition is not known. Heat and 

 other reagents change it into pectin. 



Pectosinic Acid (pek-to-sin'-ik) [-t/ktoc, fixed], C M - 

 H^.0^. A substance produced from pectose by treat- 

 ment with dilute watery alkalies. It is amorphous and 

 of an acid reaction, insoluble in cold dilute acids, 

 scarcely soluble in cold water, but easilv soluble in 

 warm water. Its salts are jelly-like and amorphous, 

 and soluble in warm dilute acids. 



Pectous ( pek'-tus) [->//croc, fixed, congealed]. In bi- 

 ology, consisting of one or more pectin bodies. 



Pedunculate i pek-tung'-ku-ldt) [pectunculus,& little 

 comb]. In biology, furnished with a comb-like ar- 

 nient of minute spines or bristles. 



Pectunculi (pek-tunk' -u-li) [pecten, comb]. Plural of 

 unculus. Longitudinal striations in the walls of 

 the Sylvian aqueduct. 

 Pectus [pek'-tus) [pectus, breast: //. , Pectora\ That 

 part of the body between the neck and the abdomen. 

 In biology, the chest, breast, lower surface of the 

 thorax or pectoral region. P, carinatum. Same as 

 Pigeon-breast. P. gallinatum. Same as Chicken- 

 breast. P. gallinaceum. See Chicken-breast. 

 Pedal (pe'-dat )[pes, p*dis, foot]. Pertaining to the foot. 

 Pedanchone (ped-ang'-ko-ne) [ -die , child; ayxbvi), 

 choking]. A synonym of Cynanche maligna. 



Pedarthrocace (ped-arth-rok'-as-e) [r^atc, child ; apO- 

 pov, a joint ; nanoc , evil]. A necrotic ulceration or 

 caries of the joints of children. The same as Oste- 

 ophthoria. 



Pedate (ped'-dt) [pes, foot]. In biology, resembling a 

 foot in form or arrangement. 



Pedatifid i ped-at' -if-id) [pedatus, furnished with feet ; 

 findere, to divide, cleave]. In biology, pedately di- 

 vided or cleft about half-way to the base. 



Pedatinerved (ped-af -in-ervd) [pedatus, furnished with 

 feet ; nervus, nerve]. In biology, applied to leaves 

 having no mid-rib, but supplied with two strong lateral 

 nerves, which give rise to others extending toward the 

 apex ; pedately veined. 



Pedatipartite (ped-at-ip-ar' -fit) [pedatus, furnished 

 with feet; partire, to part]. In biology, pedately 

 lobed or cleft, with the sinuses extending about half- 

 way to the base. 



Pedatisect (ped-at'-is-ekt) [pedatus, furnished with 

 feet ; secare, to cut]. In biology, pedately cleft or 

 parted ; having the cleft reaching nearly to the mid-rib 

 or base. 



Pedatrophia, Pedatrophy (ped-at-ro'-fe-ah, ped-af -ro- 

 fe) [~alc, child ; arpopia, atrophy]. I. Any wasting 

 disease of childhood. 2. Synonym of Tabes mesen- 

 terica, or Intestinal Catarrh of Children. 



Pederastia, Pederasty (ped-er-as'-te-ah, ped'-er-as-te) 

 [-ate, boy; ipaeir, to love]. Intercourse with a boy 

 per anum. 



Pederastic (ped-er-as'-tik) [—atdepaiTia, pederasty]. 

 Pertaining to pederasty. 



Pedesis (pe-de / -sis) [— ijfir/Gie, leaping or bounding]. 

 Jevon's name for the indefinite dancing or oscillating 

 motion of the particles of any substance sufficiently 

 powdered and suspended in a suitable liquid. It is a 

 purely physical phenomenon probably due to the fact 

 that the particles are in very delicate equilibrium and 

 hence extremely sensitive to the slightest change of 

 temperature. It is with less propriety termed Molecu- 

 lar Movement , Broivnian Movement, and Titubation . 



Pedialgia ( pe-de-al' -je-ali) [xtdiov, foot; a'/yoe, a pain]. 

 Pain in the foot. 



Pediaphtha ( pe-de-af'-thah) (Vale, child; &<p6a, thrush]. 

 Infantile aphtha. 



Pediatric (pe-de-at'-rik) [-ale, child ; larpia, thera- 

 peutics]. Pertaining to pediatrics. 



Pediatrics ( pe-de-af -riks) [-ale, child ; larpia, thera- 

 peutics]. The treatment of the diseases of children. 



Pediatry (pe'-de-at-re). See Pediatrics. 



Pedicel (ped'-is-el) [pediculus, dim. of pes, a foot]. 

 In biology : (a) a branch of a flower-cluster support- 

 ing one or more flowers ; (b) any little foot, foot-stalk, 

 or foot-like organ. P. -cell, in biology, a cell acting 

 as a foot-stalk to some organ ; as the flask -shaped cell 

 which supports the antheridium in the Characea'. 



Pedicellaria ( ped-is-el-a' -re-ah) [pedicellus, a pedicel : 

 pi. , Pedicellaria']. In biology, one of the tactile 

 organs of the echinoderm, serving to keep off para- 

 sites, to retain protective substances (sea- weeds, etc.), 

 and as organs of attachment or aids to locomotion. 



Pedicellate (ped-is-el'-dt) [pedicellus, a pedicel]. In 

 biology, having a pedicel. 



Pedicellus (ped-is-el'-us) [dim. of pediculus, a little 

 foot: //., Pedicelli~\. In biology: (a) a pedicel; 

 (b) the third joint of the antenna of an insect. 



Pedicle (ped'-ik-l) [pediculus, a little foot]. In biol- 

 ogy : (a) the stalk of a flower-cluster, whether sup- 

 porting one flower or more ; (b) the bony process giv- 

 ing support to the antlers of a deer ; (c) the foot of the 

 neural arch of a vertebra. In pathology, the narrow 

 part of a tumor or morbid growth by which it is at- 

 tached or which supports it. P. of Invagination, a 



