The fused head and thorax of spiders and crustaceans
cryptoxanthin
cryptoxanthin
noun
(organic chemistry) A xanthophyll pigment (a hydroxy derivative of carotene) that occurs widely in nature.
cytopharynxes
cytopharynxes
noun
plural of cytopharynx
exarchateship
executrixship
executrixship
noun
The state or business of an executrix.
exhibitorship
exhibitorship
noun
The role or status of an exhibitor.
exocataphoria
extractorship
extraphysical
extraphysical
adj
Not governed by physical laws
hepatorrhexis
hepatorrhexis
noun
(medicine, pathology) A rupture of the liver.
hypercathexis
hypercathexis
noun
An excessive concentration of mental energy on an object or person.
hyperorthodox
hyperorthodox
adj
Extremely orthodox.
hyperothodoxy
hypertoxicity
hypertoxicity
noun
The quality of being hypertoxic.
orthopyroxene
orthopyroxene
noun
(mineralogy) Any pyroxene that forms orthorhombic crystals.
preexhaustion
preexhibition
preextinguish
pyohemothorax
sixpennyworth
sixpennyworth
noun
(dated) A portion worth sixpence.
sternoxiphoid
trachelopexia
trisulphoxide
xanthocarpous
xanthocarpous
adj
(botany) Having yellow fruits.
xanthopicrite
xanthopicrite
noun
(organic chemistry, archaic) A bitter crystalline alkaloid extracted from plants of family Xanthoxylaceae.
xanthoproteic
xanthoproteic
adj
Of or pertaining to xanthoproteic acid or xanthoproteins.
xanthoprotein
xanthoprotein
noun
A protein formed when xanthoproteic acid contacts epithelial cells, indicative of inadequate safety precautions when handling nitric acid.
xerophthalmia
xerophthalmia
noun
(ophthalmology) A condition due to a deficiency of vitamin A where the conjunctiva and cornea become dry. The condition starts with conjunctival xerosis and night blindness and progresses to corneal xerosis and, later, a severe condition called keratomalacia.
xerophthalmic
xerophthalmic
adj
Of or pertaining to xerophthalmia.
xerophthalmos
xiphiplastral
xiphiplastral
adj
Relating to a xiphiplastron.
xiphiplastron
xiphiplastron
noun
The posterior, or fourth lateral plate in the plastron of a turtle.
