PHL- 



PHR- 



bundle sheath where the latter 

 consists of two layers (bot.}. 



phloeoterma (fle'oteYma) n. [Gk. 

 phloios, bark ; terma, end.] Endo- 

 dermis ; innermost layer of cortex 

 (dot.}. 



pholidosis (fol'ido'sis) n. [Gk. pholis, 

 scale.] Scale arrangement of scaled 

 animals. 



phonation (fb'na'shun) n. [Gk. phone, 

 sound.] Of Insects, sound pro- 

 duction. 



phoranthium (foran'thium) n. [Gk. 

 pherein, to bear ; anthos, flower.] 

 The receptacle of composite plants 

 (dot.}. 



phorozooid (fo'rozo'oid) n. [Gk. 

 pherein, to bear ; zoon, animal ; 

 eidos, resemblance.] Foster forms 

 of Doliolum buds, never sexually 

 mature but set free with gonozooids 

 attached to a ventral outgrowth 

 (zool}. 



phosphene (fos'fen) n. [Gk. phos, 

 light ; phainein, to show.] A light 

 impression on the retina due to 

 stimulus other than rays of light 

 (Phys.}. 



phosphorescence (fos'fores'ens) n. 

 [Gk. phosphoros, bringing light.] 

 The state of being luminous without 

 sensible heat ; common in marine 

 Protozoa, some Copepods, and the 

 majority of deep-sea animals. 



photodynamics (fo'todinam'iks) n. 

 [Gk. phos, light ; dynamis, strength.] 

 The study of the effects of light- 

 stimulation on plants (hot.}. 



photogen (fo'tojen) n. [Gk. phos, 

 light ; gene, production.] The light- 

 producing organ of certain Poly- 

 chaets (zool}. 



photogenic (fo'tojgn'ik) a. [Gk. phos, 

 light ; gene, production.] Light- 

 producing ; phosphorescent. 



photopathy (fotop'athi) . [Gk. 

 phos, light ; pathos, feeling.] Re- 

 sponse 16 light stimulus (bot.}. 



photophilous (fotof'ilus) a. [Gk. 

 phos, light ;philos, loving.] Seeking 

 and thriving in strong light (hot.}. 



photophore (fo'tofor) n. [Gk. phos, 

 light ; pherein, to bear.] A phos- 

 phorescent organ of Fishes (zool.}. 



photophygous (fotofigus) a. [Gk. 

 phos, light ; phyge, flight] Avoiding 

 strong light (biol}. 



photospheres (fo'tosf erz) n. plu. [Gk. 

 phos, light ; sphaira, a globe.] 

 Luminous organs of certain Crus- 

 tacea (zool.}. 



photosynthesis (fo'tosin'thests) n. 

 [Gk. phos, light ; synthesis, a putting 

 together.] Carbon assimilation 

 (biol}. 



phototaxis (f 6'totak'sis) n. [Gk. 

 phos, light ; taxis, an arrangement.] 

 Response to the stimulus of light 



phototonus (fo'toto'nus) n. \Gk.phos, 

 light ; tonos, a stretching/] Sensi- 

 tiveness to light ; the condition of 

 a plant or plant organ induced by 

 light (bot.}. 



phototropism (fdtot'ropizm) n. [Gk. 

 phos, light ; trope, a turning.] The 

 tendency shown by most plants to 

 turn their growing parts towards 

 the greater light (bot.}. 



pliragma (frag'ma) n. [Gk. phragina, 

 a fence.] A spurious dissepiment ; 

 a septum (bot.} ; a thoracic partition 

 in Insects (zool}. 



phragmocone (frag'mokon) n. [Gk. 

 phragma, fence ; konos, a cone.] 

 In Belemnites and other Molluscs, 

 a cone divided internally by a series 

 of septa perforated by a siphuncle 

 (Pal.}. 



phrenic (fren'ik) a. [Gk. phren, 

 diaphragm.] Pert, or in the region 

 of the diaphragm ; appl. artery, 

 nerve, plexus, vein (anal}. 



phrenicocolic (fren'lkokol'ik) a. [Gk. 

 phren, diaphragm ; kolon, part of 

 intestine.] Appl. a ligament, con- 

 sisting of a fold of peritoneum from 

 left colic flexure to diaphragm (anat.}, 



phrenicocostal (fren'lkokos'tal) a, 

 [Gk. phren, diaphragm ; L. costa, 

 rib.] Appl. a narrow slit or sinus 

 between the costal and diaphrag- 

 matic pleurae (anat.}. 



phrenicolienal (frgn'iktille'nal) a. [Gk. 

 phren, diaphragm ; L. lien, spleen.] 

 Appl. a ligament forming part of 

 the peritoneum reflected over the 

 spleen and extending to the dia- 

 phragm (anat}. 



phrenicopericardiac(fren'ik6per'ikar'- 

 diak) a. [Gk. phren, diaphragm ; 

 peri, round ; kardia, heart.] Appl. 

 a ligament extending from dia- 

 phragm to pericardium (anat.}. 



