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.
asphyxiative
carbomethoxy
carbomethoxy
noun
(organic chemistry, in combination) A methyl ester of a carboxylic acid when used as a substituent -CO₂-CH₃
citharexylum
cyclohexanes
cyclohexanes
noun
plural of cyclohexane
cyclohexanol
cyclohexanol
noun
(organic chemistry) The alicyclic alcohol derived from cyclohexane by replacement of a hydrogen atom with a hydroxyl group
(British spelling) Alternative spelling of hematoxylin
haematoxylon
hematoxylins
hematoxylins
noun
plural of hematoxylin
heptahydroxy
heptahydroxy
noun
(organic chemistry, in combination) seven hydroxy groups. (OH)₇
hexadactylic
hexadactylic
adj
hexadactylous
hexahydrated
hexahydrated
adj
Converted to a hexahydrate
hexahydrates
hexahydrates
noun
plural of hexahydrate
hexangularly
hexangularly
adv
In a hexangular manner.
hexaphyllous
hexaphyllous
adj
(botany) Having six leaves or leaflets.
hexasyllabic
hexasyllabic
Adjective
Having six syllables.
hexasyllable
homosexually
homosexually
adv
In a homosexual way.
hydroextract
hydroxylases
hydroxylases
noun
plural of hydroxylase
hydroxylated
hydroxylated
adj
(organic chemistry) That has been modified by hydroxylation
verb
simple past tense and past participle of hydroxylate
hydroxylates
hydroxylates
verb
Third-person singular simple present indicative form of hydroxylate
hydroxyureas
hydroxyureas
noun
plural of hydroxyurea
hydroxyzines
hydroxyzines
noun
plural of hydroxyzine
hyperanxious
hyperanxious
adj
Very anxious
hypercomplex
hypercomplex
adj
(mathematics) Describing any of several types of higher-dimensional numbers having some characteristics of complex numbers.
noun
(mathematics) A hypercomplex number.
hyperexcited
hyperexcited
adj
Very highly excited.
hyperextends
hyperextends
verb
Third-person singular simple present indicative form of hyperextend
hyperflexion
hyperflexion
noun
Excessive flexion of a joint.
hyperothodox
hyperpyrexia
hyperpyrexia
noun
(medicine) An excessive and unusual elevation of set body temperature greater than or equal to 41°C (105.8°F), or extremely high fever.
hypocathexis
hypoprosexia
hypoxanthine
hypoxanthine
noun
(organic chemistry) A bicyclic heterocycle, 3,7-dihydropurin-6-one, that is an intermediate in the biosynthesis of uric acid.
hysteropexia
karyorrhexis
karyorrhexis
noun
The destructive fragmentation of the nucleus of a dying cell whereby its chromatin is distributed irregularly throughout the cytoplasm.
lexicography
lexicography
noun
(countable) A dictionary, a lexicon, a wordbook.
(uncountable) The art or craft of compiling, writing, and editing dictionaries.
(uncountable, linguistics) The scholarly discipline of analysing and describing the semantic, syntagmatic and paradigmatic relationships within the lexicon (vocabulary) of a language and developing theories of dictionary components and structures linking the data in dictionaries.
methoxychlor
methoxychlor
noun
(organic chemistry) A synthetic organochlorine used as an insecticide.
neoorthodoxy
oropharynxes
oxalaldehyde
oxyacanthine
oxyacanthine
noun
(organic chemistry) berbine
oxycephalism
oxycephalism
noun
Synonym of oxycephaly
oxycephalous
oxyhexactine
oxymethylene
oxymethylene
noun
(chemistry) Formic aldehyde, regarded as a methylene derivative.
oxyosphresia
oxyphosphate
pentahydroxy
pentahydroxy
noun
(organic chemistry, in combination) Five hydroxy groups in a molecule.
phyllopteryx
phyllotaxies
phyllotaxies
noun
plural of phyllotaxy
phytoalexins
phytoalexins
noun
plural of phytoalexin
propoxyphene
propoxyphene
noun
Dextropropoxyphene.
psychoreflex
psychosexual
psychosexual
adj
Of or relating to the psychological aspect or aspects of sexuality.
pyxidanthera
sulphoxylate
sulphoxylate
noun
Alternative form of sulfoxylate
tachyauxesis
tachyauxesis
noun
The differential growth of a part relative to the whole body
tachyauxetic
tetrahydroxy
tetrahydroxy
noun
(organic chemistry, in combination) Four hydroxy groups in a molecule