rachitis
n . 佝偻病,脊柱炎
佝偻病,脊柱炎
rachitis n 1 :
inflammation of the vertebral column 2 :
childhood disease caused by deficiency of vitamin D and sunlight associated with impaired metabolism of calcium and phosphorus [
synonym : {
rickets }, {
rachitis }]
Rachitis \
Ra *
chi "
tis \ (
r [.
a ]*
k [
imac ]"
t [
i ^]
s ),
n . [
NL .,
fr .
Gr .
"
rachi ^
tis (
sc .
nosos ),
fr . "
ra `
chis , -
ios ,
the spine .]
[
Written also {
rhachitis }.]
1 . (
Med .)
Literally ,
inflammation of the spine ,
but commonly applied to the rickets .
See {
Rickets }.
[
1913 Webster ]
2 . (
Bot .)
A disease which produces abortion in the fruit or seeds . --
Henslow .
[
1913 Webster ]
Rickets \
Rick "
ets \,
n .
pl . [
Of uncertain origin ;
but cf .
AS .
wrigian to bend ,
D .
wrikken to shake ,
E .
wriggle .] (
Med .)
A disease which affects children ,
and which is characterized by a bulky head ,
crooked spine and limbs ,
depressed ribs ,
enlarged and spongy articular epiphyses ,
tumid abdomen ,
and short stature ,
together with clear and often premature mental faculties .
The essential cause of the disease appears to be the nondeposition of earthy salts in the osteoid tissues .
Children afflicted with this malady stand and walk unsteadily .
Called also {
rachitis }.
[
1913 Webster ]
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