HAD- 



124 



HAE- 



the same stimulus produce dim- 

 inishing effects (phys.}. 



hadrocentrlc (h&d'rosgn'trik) a. [Gk. 

 hadros, thick ; kentron, centre.] 

 With the phloem surrounding the 

 xylem (bot.}. 



haemachrome (he'makrom) n. [Gk. 

 haima, blood ; chromos, colour.] 

 The colouring matter found in the 

 blood (phys.}. 



haemacyanin, see haemocyanin. 



haemacyte (he'masit) n. [Gk. haima, 

 blood ; kytos, hollow.] A blood 

 corpuscle (anat., phys.}. 



haemad (he'mad) adv. [Gk. haima, 

 blood.] Situated on same side 

 of vertebral column as the heart 

 (zool., anat.}. 



haemal (he'mal) a. [Gk. haima, 

 blood.] Pert, blood or blood- 

 vessels ; also situated on the same 

 side of the vertebral column as the 

 heart (zool.}. 



haemamoeba (hem'ame'ba) n. [Gk. 

 haima, blood ; amoibos, exchang- 

 ing.] Protozoon with an amoeboid 

 trophozoitic stage parasitic in a red 

 blood-corpuscle (zool.}. 



haemapoietic (hem'apoigt'ik) a. [Gk. 

 haima, blood ; poiein, to form.] 

 Blood-forming. 



haemapophysis (hem'apof'isis) n. 

 [Gk. haima, blood ; apo, from ; 

 phyein, to grow.] One of plate-like 

 or spine-like processes growing 

 from the latero-ventral surfaces of 

 a vertebral centrum (anat.}. 



haexnatal (hem'atal) a. [Gk. haima, 

 blood.] Pert, blood or blood-vessels. 



haematid (hem'atid) n. [Gk. haima, 

 blood.] Red blood-corpuscle. 



haematin (hem'atln) n. [Gk. haima, 

 blood.] A blue-black substance 

 formed by the decomposition of 

 haemoglobin, and probably con- 

 taining iron (phys.}. 



haematobic (hem'ato'bflc) a. [Gk. 

 haima, blood ; bios, life.] Living 

 in the blood (zool.}. 



haematobium (hem'ato'bTum) n. [Gk. 

 haima, blood ; bios, life.] Any or- 

 ganism, plant or animal, living in 

 the blood (biol.}. 



haematoblast (hgm'atoblast) n. [Gk. 

 haima, blood ; blastos, bud.] Any 

 cell that will develop into a red 

 blood-corpuscle (emb.}. 



haematochrome (hgm'atokrom) n. 

 [Gk. haima, blood ; chromos, colour.] 

 A red colouring matter found in 

 certain Algae (bot.}. 



haematocryal (hgm'atokrl'al) a. [Gk. 

 haima, blood ; kryos, cold.] Cold- 

 blooded (zool.}. 



haematocyanin (hgin'atosl'anTn) n. 

 [Gk. haima, blood ; kyanos, dark 

 blue substance.] A colourless sub- 

 stance in the blood of Molluscs 

 and Arthropods which becomes 

 blue when oxydized (zool.}. 



haematocytozoon (hgm'atosi'tozo'on) 

 n. [Gk. haima, blood ; kytos, hol- 

 low ; zoon, animal.] An intra-cor- 

 puscular blood parasite (zool.). 



haematodocha (hgm'atodo'ka) n. [Gk. 

 haima, blood ; doche, receptacle.] 

 A fibre-elastic bag, normally col- 

 lapsed and spirally disposed round 

 the base of the bulb, the basal 

 portion of the palpal organ in the 

 Araneae (zool.}. 



haematogen (hgm'atojen) n. [Gk. 

 haima, blood ; gignesthai, to pro- 

 duce.] A pseudo-nuclein containing 

 iron (phys.}. 



haematogenesls (hgm'atojSn'esis) n. 

 [Gk. haima, blood ; gignesthai, to 

 produce.] The formation of blood 

 (Phys.}. 



haematogenous (hSm'atoj'gnus) a. 

 [Gk. haima, blood ; gignesthai, to 

 produce.] Formed in the blood 

 (Phys.}. 



haematoidln (hgm'atoid'In) n. [Gk. 

 haima, blood ; eidos, resemblance.] 

 An iron-free pigment found in 

 blood-stains (phys.}. 



haematolysis (henYatSl'isis) n. [Gk. 

 haima, blood ; lyein, to dissolve.] 

 Breaking up of blood corpuscles, 

 hence reduced coagulability (phys.}. 



haematophagous (hgm'atSf'agus) a. 

 [Gk. haima, blood ; phagein, to eat.] 

 Feeding on the blood, or obtaining 

 nourishment from the blood (zool.}. 



haematophyte (hgm'atoflt) n. [Gk. 

 haima, blood ; phyton, plant.] Any 

 vegetable micro-organism of the 

 blood (phys.}. 



haematoporphyrin (he"m'at6p6r'fir!n) 

 n. [Gk. haima, blood ; porphyra, 

 purple.] An iron-free substance 

 formed by the decomposition of 

 haematin (phys.}. 



