RES- 



273 



RET- 



the characteristics of a Reptile 

 (zool.). 



reservoir (r6z'6rvw6r) n. [L. reservare, 

 to keep back.] A non-contractile 

 space discharging into the gullet of 

 Mastigophora (zool.). 



resilium (rfisil'ium) n. [L. resiltre, to 

 leap back.] The horny flexible 

 hinge of a bivalve (zool.}. 



respiration (reVpTra'shun) n. [L. re, 

 again ; spirare, to breathe.] The 

 process of interchange of oxygen 

 and carbonic acid taking place 

 between an organism and its sur- 

 rounding medium (phys.). 



respiratory heart, a name given to 

 the auricle and ventricle of the 

 right side of the heart where there 

 is no direct communication between 

 right and left sides ; opp. systemic 

 heart (zool.}. 



restiform (res'tlform) a. [L. restis, a 

 rope ; forma, shape.] Having the 

 form or appearance of a rope ; appl. 

 two bodies of nerve fibres on the 

 medulla oblongata (anal.}. 



resupinate (resu'plnat) a. [L. resu- 

 pinare, to bend back.] So twisted 

 that the various parts are upside 

 down (bot.}. 



resupination (resu'plna'shun) n. [L. 

 resupinare, to bend back.] Inver- 

 sion (bot.}. 



rete (re'te) n. [L. rete, a net.] A net 

 or network. 



rete Malpighii, the Malpighian 

 layer or deeper portion of the 

 epidermis, from the stratum granu- 

 losum inwards (anat.}. 



rete mirabile, a network of blood- 

 vessels, chiefly arterial, in the swim- 

 bladder of Fishes and in Mammals, 

 also called red body, red glands, 

 red spots. 



rete mucosum, the Malpighian 

 layer or rete Malpighii. 



retecious (r6te'shus) a. [L. rete, a 

 net.] In the form of a network. 



retial (re'tial, re'shlal) a. [L. rete, 

 net.] Pert, a rete (anat.}. 



reticle (rSt'ikl) n. [L. reticulum, a 

 small net.] A reticulum. 



reticular (rgtik'ular) a. [L. reticulum, 

 a small net.] Having interstices 

 like network ; pert, a reticulum ; 

 appl. tissue. 



reticulate (rgtlk'ulat) a. [L. reticulum, 



a small net.] Appl. network nerva- 

 tion of leaf or insect wing. 



reticule (ret'ikul) n. Reticulum. 



reticulose (rgtik'ulos) a. [L. ret- 

 iculum, a small net.] Of network 

 formation. 



reticulum (rgtik'ulum) n. [L. ret- 

 iculum, a small net.] The honey- 

 comb bag or second stomach of a 

 Ruminant ; the delicate network of 

 cell protoplasm (zool.} ; the cross- 

 fibres about the base of the petioles 

 in palms (bot.}. 



retiform (re'tiform) a. [L. rete, net ; 

 forma, shape.] In the form of a 

 network. 



retina (reYina) n. [L. rete, net.] The 

 retiform membrane of the eye 

 which receives the impressions, 

 resulting in the sense of vision 

 (anat., zool.}. 



retinaculum (rgt'mak'ulum) n. [L. 

 retinere, to retain.] A small gland- 

 ular mass to which an orchid 

 pollinium adheres at dehiscence 

 (bot.} ; a band which holds parts 

 closely together (anat.} ; a minute 

 hooked prominence holding the 

 egg-sac in position in Cirripedes ; 

 a structure linking together the 

 fore and hind wings of some Insects 

 along with the frenulum (zool.}. 



retinal (rgt'fnai) a. [L. rete, a net.] 

 Pert, the retina (anat.}. 



retinerved (reYinfirvd) a. [L. rete, 

 a net ; nervus, a sinew.] Having 

 reticulate veins or nerves (dot.). 



retinophore (reYlnofor) n. [L. rete, 

 net ; Gk. pherein, to bear.] A 

 crystal cell in the ommatidium of 

 Arthropods (zool.). 



retinula (rgttn'ula) n. [L. rete, net.] 

 A group of elongated cells, the 

 innermost element of an arthropod 

 ommatidium. 



retractile (retrak'til) a. [L. retractus, 

 withdrawn.] Appl. a part or organ 

 that may be drawn inwards, as 

 feelers, claws, etc. (zool.). 



retractor (retrak'tdr) n. [L. retrafure, 

 to draw back.] A muscle which 

 by contraction withdraws the part 

 attached to it, as retractor penis 

 (zool.). 



retrobulbar (ret'robul'bar) a. [L. 

 retro, backwards ; bulbus, a ball.] 

 Posterior to the eyeball (anat.). 

 S 



