protodeboronation
The (selective) removal of a boronic group to return a compound to its original state; used especially to separate different isomers or enantiomers

protodeboronations
plural of protodeboronation

protodesilylation
Any substitution reaction in which a silyl group is replaced by a hydrogen atom (proton)

protodesilylations
plural of protodesilylation

protoelement
A prototypical element of something.

protoelements
plural of protoelement

protofluoride
Any of a series of fluorides of a particular metal that has the fewest atoms of fluorine per molecule

protofluorides
plural of protofluoride

protogalaxies
plural of protogalaxy

protogalaxy
A cloud of gas which is starting to form a galaxy.

protogine
A form of granite containing silvery flakes of talc or similar minerals.

protogines
plural of protogine

protohaemin
Alternative spelling of protohemin.

protohaemins
plural of protohaemin

protohalo
The assemblage of material that coalesces to form a galactic halo

protohaloes
plural of protohalo

protohalos
plural of protohalo

protohemin
hemin

protohemins
plural of protohemin

protohypericin
A polycyclic derivative of hypericin

protoimogolite
The precursor of an imogolite

protoimogolites
plural of protoimogolite

protoiodide
Any of a series of iodides of a particular metal that has the fewest atoms of iodine per molecule

protoiodides
plural of protoiodide

protokylol
A ß-adrenergic receptor agonist used as a bronchodilator.

protolimonoid
A precursor to a limonoid.

protolimonoids
plural of protolimonoid

protolipid
Alternative form of proteolipid.

protolipids
plural of protolipid

protomer
Any prototropic tautomer.

protomerite
The posterior segment of a gregarine.
The proximal segment of chelicerae.

protomers
plural of protomer

protometabolism
A series of linked chemical reactions, in a prebiotic environment, that has characteristics of true metabolism.

protometal
A style of music that was a precursor to heavy metal.

protomolecule
A collection of unstably bound atoms that has the potential to form a molecule if the structure can shed sufficient energy.
A relatively simple molecule from which a more complex molecule is derived.

protomolecules
plural of protomolecule

protomylonite
A mylonite where most of the rock volume has not been ground into matrix and so contains its original texture.

protomylonites
plural of protomylonite

protonation
The addition of a proton (hydrogen ion) to an atom, molecule or ion, normally to generate a cation.

protonations
plural of protonation

protoncogene
Alternative form of protooncogene.

protoncogenes
plural of protoncogene

protonics
An analog of electronics based on the movement of protons

protonitrate
A compound of nitric acid with the protoxide of a metal.

protonitrates
plural of protonitrate

protonization
Synonym of protonation.

protonizations
plural of protonization

protonography
The graphical representation of the presence of protons (hydrogen ions) during a chemical reaction

protonolyses
plural of protonolysis

protonolysis
The breakup of a molecule following protonation

protooncogene
Alternative form of proto-oncogene.

protooncogenes
plural of protooncogene

protopanaxadiol
A terpene sapogenin, related to dammarane, found in ginseng.

protopanaxadiols
plural of protopanaxadiol

protopanaxatriol
A terpene sapogenin, related to dammarane, found in ginseng

protopanaxatriols
plural of protopanaxatriol

protopectin
Synonym of pectose.

protopectinase
Any protease that breaks down protopectin

protopectinases
plural of protopectinase

protopectins
plural of protopectin

protophorin
Alternative form of protoporphyrin.

protophorins
plural of protophorin

protophosphide
Any of a series of phosphides of a particular metal that has the fewest atoms of phosphorus per molecule

protophosphides
plural of protophosphide

protophylline
Synonym of protochlorophylline.

protopore
A structure in a cell membrane that develops into an ion channel pore

protopores
plural of protopore

protoporphirin
Misspelling of protoporphyrin.

protoporphorin
Misspelling of protoporphyrin.

protoporphyrin
Any porphyrin that lacks a central metal ion

protoporphyrins
plural of protoporphyrin

protoproteose
Any of a class of proteoses formed as products in the digestion of proteins.

protoproteoses
plural of protoproteose

protoribosome
The precursor to ribosomes..

protoselenide
Any of a series of selenides of a particular metal that has the fewest atoms of selenium per molecule

protosilicate
A silicate formed with the lowest proportion of silicic acid, or having only one atom of silicon in the molecule.

protosilicates
plural of protosilicate

protosolvent
Any protonated solvent (containing hydrogen atoms), especially when residually present during NMR spectroscopy

protosolvents
plural of protosolvent

protostar
A collection of gas and dust in space with high temperature that usually grows to the point of beginning nuclear fusion and becoming a star.

protostars
plural of protostar

protosulfide
Any of a series of sulfides of a particular metal that has the fewest atoms of sulfur per molecule

protosulfides
plural of protosulfide

protosulphate
A compound of sulphuric acid with the protoxide of a metal.

protosulphates
plural of protosulphate

protosulphide
Alternative spelling of protosulfide.

protosulphides
plural of protosulphide

protosun
Synonym of protostar.

protosuns
plural of protosun

protosyllable
A vocalization in speech that is the precursor to a syllable.
A rhythmic precursor to a syllable in birdsong.

protosyllables
plural of protosyllable

prototheme
The first element of a name composed of two traditional name roots.

protothemes
plural of prototheme

protoxid
Archaic form of protoxide.

protoxide
Any of a series of oxides of a particular metal that has the fewest atoms of oxygen per molecule

protoxides
plural of protoxide

protoxids
plural of protoxid

protoxin
A rudimentary toxin

protoxins
plural of protoxin

protoxyd
Obsolete form of protoxide.

protoxyds
plural of protoxyd

protransglutaminase
The inactive precursor of transglutaminase

protrudin
A protein that induces neurite formation

protryptase
A precursor of tryptase

protryptases
plural of protryptase

protyl
Alternative form of protyle.

protyle
A hypothetical base substance from which all chemical elements were believed to have been made; subatomic particles.

protyles
plural of protyle

protyls
plural of protyl

provasopressin
Synonym of copeptin.

proventriculi
plural of proventriculus

proventriculus
The part of the avian stomach, between the crop and the gizzard, that secretes digestive enzymes.
A similar part of the digestive system in insects and myriapods.

proxiredoxin
Misspelling of peroxiredoxin.

proxisome
Misspelling of peroxisome.

proxygene
A full-length protein that has high local similarity with a specific short length of nucleic acid.

proxygenes
plural of proxygene

proxyl
The free radical 2,2,5,5-tetramethyl-1-pyrrolidinyloxy

proxyls
plural of proxyl

prozymogen
A material formed of the chromatin of the nucleus which is extruded into the cytoplasm, there becoming zymogen.

prunetin
An O-methylated isoflavone originally found in the bark of Prunus emarginata, the Oregon cherry.

pruritogen
Any substance that causes pruritus (itching).

pruritogens
plural of pruritogen

pruvanserin
A selective 5-HT2A receptor antagonist investigated as an insomnia treatment.

przewalskinine
An alkaloid first isolated from Thalictrum przewalskii.

przewaquinone
A lipophilic diterpene quinone found in Salvia przewalskii.

psalmotoxin
Any of a group of toxins in the venum of tarantulas of the genus Psalmopoeus

psalmotoxins
plural of psalmotoxin

psammaplin
Any of a group of cytotoxic bromotyrosine phenols (e.g. N,N"-(dithiodi-2,1-ethanediyl)bis[3-bromo-4-hydroxy-a-(hydroxyimino)-benzenepropanamide) found in some marine sponges

psammaplins
plural of psammaplin