| 释义 |
for·mu·la
I. \ˈfȯrmyələ, -ȯ(ə)m-\ noun
(plural formu·las \-ləz\ ; also formu·lae \-ˌlē, -ˌlī\)
Usage: often attributive
Etymology: Latin, diminutive of forma form
1.
a. : a set form of words for use in a ceremony or ritual
b. : a formal statement of religious doctrine or a written confession of faith
c. : a conventionalized statement intended to express some fundamental truth or principle especially as a basis for negotiation, discussion, or action
< the two nations sought a formula that would allow settling of the border dispute >
< the formula “54-40 or fight” >
2.
a. : a recipe or prescription giving method and proportions of ingredients for the preparation of some material (as a medicine, a blend of coffee, or a caulking compound)
b. : a milk mixture or substitute for feeding an infant typically consisting of prescribed proportions and forms of cow's milk, water, and sugar; often : a batch of this made up at one time to meet an infant's future requirements (as during a 24-hour period)
3.
a. : a general fact, rule, or principle expressed in symbols
< certain earlier workers attempted to differentiate nematodes by a formula of numerical ratios >
b. : a symbolic expression showing the composition or constitution of a chemical substance and consisting of symbols for the elements present and subscripts to indicate the relative or total number of atoms present in a molecule
< the formulas for water, sulfuric acid, and ethyl alcohol are H2O, H2SO4, and C2H5OH respectively >
— see empirical formula, general formula, molecular formula, structural formula
c. : a group of symbols (as numbers, letters, or arbitrary signs) associated to express briefly a single concept; also in logic : any combination of signs in an uninterpreted calculus
d. in logic : an expression (as a statement or matrix) stipulated to be meaningful by the rules of the calculus to which it belongs; especially : such an expression containing only variables
4. : a prescribed or set form : a fixed or conventional method (as of acting, arranging, or speaking) : an established rule or custom — often used somewhat derogatorily
< many of the paintings were unimaginative formula works >
< the limitations of formula fiction — Coleman Rosenberger >
5. : any of the various written forms by which the praetors of ancient Rome referred causes to judges or arbitrators for hearing and adjudication upon a summons of the defendant into court by the plaintiff
II. adjective
Etymology: formula, noun
of a racing car : conforming to prescribed specifications of size, weight, and engine displacement and usually having a long narrow body, open wheels, a single-seat open cockpit, and an engine in the rear |