DEL- 
delomorphous (dé'liémér’fiis) a. [Gk. 
delos, ~ re morphe, shape.] With 
definite appl. a cells of 
the qusiric winds ta (an at). 
delthyrium  (délthi’ ‘itim) 
[Gk. 
delos, visible ; A dnt little door.] 
hin 
and bea the peduncle exit in 
many Brachiopods (¢ (zo 
deltidium (déltid’iim) ss [Gk. A, 
delta.] A plate covering the del- 
[Gk. A, delta ; 
More or less 
n shape, afp/. nerves, 
muscles, etc. nelle nat.) ; appl. the oral 
plat a on the calyx of the Blastoids 
(Z00: 
iameuiad (démér’sal) a. [L. demer- 
gere,to demerse.] Sunk; apf/. fish 
eggs which sink to the bottom 
(zool.). 
demiplate ig eg nN. = see ip 
half; platus, flat.| Plate cut off by 
the fusion Sf adjoing pistes ‘behind 
it from the central suture line of the 
ambulacral area in Echinoderms 
— —_ toid) a. 
nce. } 
(zool.). 
demisheath (dém" ishéth) # [L. 
dimidius, half; A.S. sceath, sheath. ] 
One of the protectiog covers of the 
ovipo sitor (zo 
demoid (dé hain) a. [Gk. demos, the 
common people.] Abundant (faz.). 
dendriform geet Fe aed a. 
dendron, tree; L. a, shape.] 
Tree-lik be 
— (dén’drit) #. [Gk. dendron, 
tree.] A bra nched tree-like _— 
plasmic process of a nerve cell 
Dendrogaea (dén’dréjé’4) 2. [Gk 
dendron, 
or tooth-like scocae (anat. 
Aes a. [L. dens, oth 
teeth; appl. nerves, blood- 
vessels, canals, pasiie papillae, 
tissue, etc. = 
dentary (dén’tari) os dens, tooth.] 
i eerie aout bones in 
lower jaw of many vertebrates 
1). 
71 DER- 
dentate (dén’'tat) a. [L. dens, se 
ith sha sa _ like teeth on th 
—* (za. 
denta cb ati see 8 teeth and hairs 
on - margins; appl. leaves 
_ (bot. 
mewhat rodel bo ae 
denticles (dén’tiklz) 7. plu. [t dens, 
tooth. ] e paragnaths of certain 
Paetausy the teeth within the 
secondary orifice in Polyzoa; the 
—- of certain Elasmobranchs 
dentinal (dén’tinal) a, [L. dems, tooth.] 
Pert. grr A ec at.). 
2s, tooth.] 
_ighly HE ie substance 
ms 
number, arrangement, 
i Kind < of 1 teeth in the jaws of an 
og Ae” ee 
)m. 
L. way ; pi ngere, to pain t.] 
The aati of colour in a cell, 
either b or pyrene ental 
physiological Pies Ays.). 
— Ss iL le 
level. re ied sae 
(o by 
depressant ear ,.. [Le de- 
lower.] Anything that 
-) 
= éprést’) a. [L vimere, 
werk Flattened in a vertical 
Seaton iol.). 
epressomotor Soy nici tor) 7. 
fis —— to lower ; movere, to 
mo Any nerve whic lowers 
pon y tn § (ana en 
(déprés’‘ér) #. [L. 
app 
activity of an organ (amaz, 
derm (dérm) 7. [Gk. derma, , skin] 
The layers of the laa 
rmis (anatz. 
derma (dér’ma) 7. 38 ag 
ermal 
dermalia {cermaiis) re il. a. 
kin.] Microscleres in the 
membrane in 
