Specifical vs. Specific — What's the Difference?

Clearly defined or identified

Relating to species or a species

(of a duty or a tax) levied at a fixed rate per physical unit of the thing taxed, regardless of its price.

Of or denoting a number equal to the ratio of the value of some property of a given substance to the value of the same property of some other substance used as a reference, such as water, or of a vacuum, under equivalent conditions

A medicine or remedy effective in treating a particular disease or part of the body

A precise detail

Explicitly set forth; definite

Clear or detailed in communicating

Limited, distinctive, or unique

Intended for, applying to, or acting on a particular thing

Concerned particularly with the subject specified. Often used in combination

Relating to, characterizing, or distinguishing a species

Designating a disease produced by a particular microorganism or condition.

Having a remedial influence or effect on a particular disease.

(Immunology) Having an affinity limited to a particular antibody or antigen.

Designating a customs charge levied on merchandise by unit or weight rather than according to value.

Designating a commodity rate applicable to the transportation of a single commodity between named points.

Something particularly fitted to a use or purpose.

A remedy intended for a particular ailment or disorder.

A distinguishing quality or attribute.

Specifics Distinct items or details; particulars.

Explicit or definite.

Pertaining to a species, as a taxon or taxa at the rank of species.

Special, distinctive or unique.

Intended for, or applying to, a particular thing.

Serving to identify a particular thing (often a disease or condition), with little risk of mistaking something else for it.

Being a remedy for a particular disease on a deeper level, rather than just masking the symptoms

(immunology) limited to a particular antibody or antigen.

(physics) of a value divided by mass (e.g. specific orbital energy)

(physics) similarly referring to a value divided by any measure which acts to standardize it (e.g. thrust specific fuel consumption, referring to fuel consumption divided by thrust)

(physics) a measure compared with a standard reference value by division, to produce a ratio without unit or dimension (e.g. specific refractive index is a pure number, and is relative to that of air)

A distinguishing attribute or quality.

A remedy for a specific disease or condition.

Specification

(in the plural) The details; particulars.

Of or pertaining to a species; characterizing or constituting a species; possessing the peculiar property or properties of a thing which constitute its species, and distinguish it from other things; as, the specific form of an animal or a plant; the specific qualities of a drug; the specific distinction between virtue and vice.

Specifying; definite, or making definite; limited; precise; discriminating; as, a specific statement.

Exerting a peculiar influence over any part of the body; preventing or curing disease by a peculiar adaptation, and not on general principles; as, quinine is a specific medicine in cases of malaria.

Anything having peculiar adaption to the purpose to which it is applied.

A fact about some part (as opposed to general);

A medicine that has a mitigating effect on a specific disease;

(sometimes followed by `to') applying to or characterized by or distinguishing something particular or special or unique;

Stated explicitly or in detail;

Relating to or distinguishing or constituting a taxonomic species;

Being or affecting a disease produced by a particular microorganism or condition; used also of stains or dyes used in making microscope slides;