A specimen of the species Archaeopteryx lithographica, being the earliest and most primitive known bird, representing a transition in the evolution of dinosaurs to birds.
auxotrophies
auxotrophies
noun
plural of auxotrophy
chartophylax
chartophylax
noun
(historical) An ecclesiastical officer in charge of official documents and records in the Greek Orthodox Church in Byzantine times.
esothyropexy
executorship
executorship
noun
the office or position of an executor
extrahepatic
extrahepatic
adj
Originating or occurring outside the liver.
heptahydroxy
heptahydroxy
noun
(organic chemistry, in combination) seven hydroxy groups. (OH)₇
heteroduplex
heteroduplex
noun
(biochemistry) A nucleic acid composed of two chains with each derived from a different parent molecule
verb
To form such a compound by genetic recombination
hyperexcited
hyperexcited
adj
Very highly excited.
hyperextends
hyperextends
verb
Third-person singular simple present indicative form of hyperextend
hyperothodox
hysteropexia
pentahydroxy
pentahydroxy
noun
(organic chemistry, in combination) Five hydroxy groups in a molecule.
philorthodox
phyllopteryx
pneumothorax
pneumothorax
noun
(medicine) Presence of air inside the pleural cavity, usually caused by injury either to the lung or the chest wall.
posthexaplar
preexhibitor
pyxidanthera
retroxiphoid
streptothrix
streptothrix
noun
(biology) Any of the genus Streptothrix of bacilli, occurring in the form of long, smooth and apparently branched threads, either straight or twisted.
strophotaxis
thixotropies
trisulphoxid
trophallaxes
trophallaxes
noun
plural of trophallaxis
trophallaxis
trophallaxis
noun
(biology) The mutual exchange of (fluid) food between individuals, especially in social insects.
trophothylax
xanthopicrin
xanthopicrin
noun
(organic chemistry) A bitter principle obtained from the bark of Zanthoxylum clava-herculis.
xanthopterin
xanthopterin
noun
A yellow crystalline solid that occurs mainly in the wings of butterflies and in the urine of mammals, converted by microorganisms into folic acid.