lead ion

A lead atom having a net electric charge.


acyl group

An organic group formed by removing one or more hydroxy groups from an oxoacid that has the general structure RkE(=O)l(OH)m (l =/= 0). Although the term is almost always applied to organic compounds, with carboxylic acid as the oxoacid, acyl groups can in principle be derived from other types of acids such as sulfonic acids or phosphonic acids.


carboacyl group

A carboacyl group is a group formed by loss of at least one OH from the carboxy group of a carboxylic acid.


divalent carboacyl group

A divalent carboacyl group is a group formed by loss of OH from two carboxy groups of a polycarboxylic acid.


gas molecular entity

Any main group molecular entity that is gaseous at standard temperature and pressure (STP; 0degreeC and 100 kPa).


PHOSPHORUS P-32

The radioactive isotope of phosphorus with relative atomic mass 31.973907 and half-life of 14.26 days.


oxygen-16 atom

The stable isotope of oxygen with relative atomic mass 15.994914. The most abundant (99.76 atom percent) isotope of naturally occurring oxygen.


oxygen-15 atom

The radioactive isotope of oxygen with relative atomic mass 15.003065. The longest-lived oxygen radionuclide with half-life of 122.2 s.


iodine-127 atom

The stable isotope of iodine with relative atomic mass 126.904468, 100 atom percent natural abundance and nuclear spin 5/2.


iodine-129 atom

The isotope of iodine with relative atomic mass 128.904988, and nuclear spin 7/2.


phosphorus-31 atom

The stable isotope of phosphorus with relative atomic mass 30.973762 and nuclear spin (1)/2.


ion

A molecular entity having a net electric charge.


monovalent inorganic anion

Any inorganic anion with a valency of one.


anion

A monoatomic or polyatomic species having one or more elementary charges of the electron.


nickel ion

A nickel atom having a net electric charge.


polyatomic ion

An ion consisting of more than one atom.


divalent inorganic anion

Any inorganic anion with a valency of two.


biolink:Disease biolink:DiseaseOrPhenotypicFeature biolink:BiologicalEntity biolink:NamedThing biolink:ThingWithTaxon


migraine with or without aura, susceptibility to

An inherited susceptibility or predisposition to developing migraines with or without aura.


inherited disease susceptibility

A latent susceptibility to disease at the genetic level, which may be activated under certain conditions.


asthma, aspirin-induced, susceptibility to


asthma-related traits, susceptibility to, 3


asthma-related traits, susceptibility to, 4


asthma-related traits, susceptibility to, 5

Any inherited susceptibility to asthma in which the cause of the disease is a mutation in the IRAK3 gene.


asthma-related traits, susceptibility to, 2

Any inherited susceptibility to asthma in which the cause of the disease is a mutation in the NPSR1 gene.


asthma-related traits, susceptibility to, 1

Any inherited susceptibility to asthma in which the cause of the disease is a mutation in the PTGDR gene.


asthma-related traits, susceptibility to, 7

Any inherited susceptibility to asthma in which the cause of the disease is a mutation in the CHI3L1 gene.


asthma-related traits, susceptibility to, 6


aluminium-28 atom

The radioactive isotope of aluminium with relative atomic mass 27.981910 and half-life of 2.25 min.


metal atom

An atom of an element that exhibits typical metallic properties, being typically shiny, with high electrical and thermal conductivity.


aromatic compound

A cyclically conjugated molecular entity with a stability (due to delocalization) significantly greater than that of a hypothetical localized structure (e.g. Kekule structure) is said to possess aromatic character.


macrocycle

A cyclic compound containing nine or more atoms as part of the cyclic system.


chemical entity

A chemical entity is a physical entity of interest in chemistry including molecular entities, parts thereof, and chemical substances.


main group molecular entity

A molecular entity containing one or more atoms from any of groups 1, 2, 13, 14, 15, 16, 17, and 18 of the periodic table.


cyclic compound

Any molecule that consists of a series of atoms joined together to form a ring.


chemical substance

A chemical substance is a portion of matter of constant composition, composed of molecular entities of the same type or of different types.


heterocyclic compound

A cyclic compound having as ring members atoms of at least two different elements.


polyatomic entity

Any molecular entity consisting of more than one atom.


inorganic molecular entity

A molecular entity that contains no carbon.


alkali metal molecular entity

A molecular entity containing one or more atoms of an alkali metal.


atom

A chemical entity constituting the smallest component of an element having the chemical properties of the element.


ring assembly

Two or more cyclic systems (single rings or fused systems) which are directly joined to each other by double or single bonds are named ring assemblies when the number of such direct ring junctions is one less than the number of cyclic systems involved.


pnictogen

Any p-block element atom that is in group 15 of the periodic table: nitrogen, phosphorus, arsenic, antimony and bismuth.


bicyclic compound

A molecule that features two fused rings.


mancude ring

Any molecular entity that consists of a ring having (formally) the maximum number of noncumulative double bonds.


p-block element atom

Any main group element atom belonging to the p-block of the periodic table.


group

A defined linked collection of atoms or a single atom within a molecular entity.


molecule

Any polyatomic entity that is an electrically neutral entity consisting of more than one atom.


organic group

Any substituent group or skeleton containing carbon.


chalcogen

Any p-block element belonging to the group 16 family of the periodic table.


heterobicyclic compound

A bicyclic compound in which at least one of the rings contains at least one skeletal heteroatom.


s-block molecular entity

An s-block molecular entity is a molecular entity containing one or more atoms of an s-block element.


alkaline earth molecular entity

An alkaline earth molecular entity is a molecular entity containing one or more atoms of an alkaline earth metal.


main group element atom

An atom belonging to one of the main groups (found in the s- and p- blocks) of the periodic table.


homocyclic compound

A cyclic compound having as ring members atoms of the same element only.


molecular entity

Any constitutionally or isotopically distinct atom, molecule, ion, ion pair, radical, radical ion, complex, conformer etc., identifiable as a separately distinguishable entity.


aluminium-26 atom

The radioactive isotope of aluminium with relative atomic mass 25.986892 and half-life of 717,000 years.


disease susceptibility

A constitution or condition of the body which makes the tissues react in special ways to certain extrinsic stimuli and thus tends to make the individual more than usually susceptible to certain diseases.