The fused head and thorax of spiders and crustaceans
chemotaxonomy
chemotaxonomy
noun
(biochemistry, genetics) The classification or taxonomy of organisms based on differences and similarities in biochemistry, especially on differences in amino acid sequence in proteins that the organisms have in common.
chlorhexidine
chlorhexidine
noun
(pharmacology) A particular chemical antiseptic and bacteriostatic.
cleidorrhexis
coxarthrocace
cyclohexanone
cyclohexanone
noun
(organic chemistry) The alicyclic ketone obtained from cyclohexane by the replacement of a methylene group by a carbonyl group.
cycloheximide
cycloheximide
noun
(organic chemistry) An agricultural fungicide produced by the bacterium Streptomyces griseus, widely used in biomedical research.
cytopharynxes
cytopharynxes
noun
plural of cytopharynx
discohexaster
discohexaster
noun
(zoology) A sponge spicule with six rays octahedrally arranged, ending with disks.
exencephalous
exocataphoria
exothermicity
exothermicity
noun
(chemistry, physics, uncountable) The quality or state of being exothermic.
(countable) The release of heat during an exothermic reaction.
extractorship
extrathoracic
extrathoracic
adj
(medicine) Outside the chest.
heterodoxical
heterodoxical
adj
heterodox
hexadactylous
hexadactylous
adj
(zoology) Having six fingers or toes.
hexicological
hexicological
adj
Relating to hexicology.
hexoctahedral
hexoctahedral
adj
Having the form of a hexoctahedron.
hexoctahedron
hexoctahedron
noun
(geometry) A solid with forty-eight equal triangular faces.
hieracosphinx
hieracosphinx
noun
A mythical beast found in Egyptian sculpture and European heraldry, being a lion with the head of a falcon.
hydroxyacetic
hypertoxicity
hypertoxicity
noun
The quality of being hypertoxic.
lexicographer
lexicographer
noun
One who writes or compiles a dictionary
lexicographic
lexicographic
adj
Like a dictionary, relating to lexicography (the writing of a dictionary).
onychorrhexis
onychorrhexis
noun
(pathology) fingernail and toenail brittleness and breakage, such as may be due to excessive strong soap and water exposure, nail polish remover, hypothyroidism, anemia, anorexia nervosa or bulimia, or after oral retinoid therapy.
oxyanthracene
oxyhemocyanin
oxyhemocyanin
noun
(biochemistry) The blue pigment that is an oxygenated form of hemocyanin
phycoxanthine
phycoxanthine
noun
Alternative form of phycoxanthin
scleroxanthin
scleroxanthin
noun
(organic chemistry, obsolete) A hydrated compound of sclerocrystallin.
sphacelotoxin
trachelopexia
trichorrhexic
trichorrhexis
trichorrhexis
noun
brittleness of the hair
xanthogenamic
xanthophyceae
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.