A colorless gas with a pungent, suffocating odor used as an adhering component of
glues in many wood products. Formaldehyde (H2CO)
is obtained most commonly by the oxidation of methanol or petroleum gases such as
methane, ethane, etc.
From form(ic) acid, from Fr. formique, + → aldehyde.
1) Excessive adherence to prescribed forms.
1) Condition or quality of being formal; accordance with required or
traditional rules, procedures, etc.
1) The act of giving something a form or structure by introducing rules
disevar kardan, disevaridan
1) To state in symbolic form; to give a definite structure to.
Compound verb, from disevar, → formal, + kardan "to do, to make;" Mid.Pers. kardan; O.Pers./Av. kar- "to do, make, build;" Av. kərənaoiti "he makes;" cf. Skt. kr- "to do, to make," krnoti "he makes, he does," karoti "he makes, he does," karma "act, deed;" PIE base kwer- "to do, to make."
1) disâr; 2) disâridan
Fr.: 1) format; 2) formater
1) General: The way in which something is presented, organized, or
From Fr. format, from Mod.L. liber formatus "a book formed" (in such and such a way), referring to shape, size; from formatus p.p. of formare "to form," → form.
1) Disâr, from dis, → form + -âr contraction of
âvar agent noun of
âvardan "to bring; to cause, produce"
(Mid.Pers. âwurtan, âvaritan; Av. ābar- "to bring; to possess,"
from prefix ā- + Av./O.Pers. bar- "to bear, carry,"
bareθre "to bear (infinitive)," bareθri
"a female that bears (children), a mother;" Mod.Pers. bordan "to carry;"
Skt. bharati "he carries;" Gk. pherein; L. fero "to carry").
1) The act or process of forming or the state of being formed, such as
→ star formation.
Verbal noun of → form, + -ate + -ion.
Diseš, verbal noun of disidan, → from dis-, → form, + -eš.
The process of preparing a hard disk or other storage medium for use by an operating system. Before a hard disk can be used, it needs to be formatted so that it will be able to store files and applications.
formic acid (HCOOH)
asid formik (#)
Fr.: acide formique
A colorless, corrosive fuming liquid with pungent odor. It occurs in various plants and in the venom of many ant species. Used in dyeing, tanning, and electroplating. Also called methanoic acid. HCOOH is the simplest organic acid and the first identified in the interstellar medium (Zuckerman et al. 1971, ApJ, 163, L41). It has been observed principally in star-forming regions such as Orion KL, Sgr B2, Sgr A, and W51 and is associated with → hot molecular cores and → massive star formation. Recently, it has also been shown to be present in some → hot corinos associated with formation of stars similar to our Sun. Due to the presence of carboxyl radical (COOH), it plays an important role in the pathway formation of → prebiotic molecules like amino acids, in the interstellar clouds and comets (see, e.g., Lattanzi et al. 2008, ApJS 176, 536).
From L. formica "ant," ultimately from from PIE *morwi-, *wormiko- "ant;" cf. Av. maoiri-; Mid.Per. môr; Pers. mur, murcé "ant;" Skt. vamra- "ant;" Gk. murmeks, wormikas; O.C.S. mraviji; O.Ir. moirb; O.N. maurr.
1) Physics, Math.: A statement of facts in a symbolical or general form, by
substitution in which a result applicable to particular data may be obtained.
Verbal form of → form.
1) The act or process of formulating.
Fr.: transformée de Fourier
A powerful mathematical tool which is the generalization of the → Fourier series for the analysis of non-periodic functions. The Fourier transform transforms a function defined on physical space into a function defined on the space of frequencies, whose values quantify the "amount" of each periodic frequency contained in the original function. The inverse Fourier transform then reconstructs the original function from its transformed frequency components. The integral F(α) = ∫ f(u)e-iαudu is called the Fourier transform of F(x) = (1/2π)∫ f(α)eiαxdx, both integrals from -∞ to + ∞.
Fr.: formation de galaxies
tarâdis-e Gâlile-yi (#)
Fr.: transformation galiléenne
The method of relating a measurement in one → reference frame to another moving with a constant velocity with respect to the first within the → Newtonian mechanics. The Galilean transformation between the coordinate systems (x,y,z,t) and (x',y',z',t') is expressed by the relations: x' = x - vt, y' = y, z' = z. Galilean transformations break down at high velocities and for electromagnetic phenomena and is superseded by the → Lorentz transformations.
tarâdis-e gaz (#)
Fr.: transformation de jauge
A change of the fields of a gauge theory that does not change the value of any measurable quantity.
Fr.: formation des grains
The process by which dust grains are assembled or produced.
Fr.: formalisme de Hamilton
A reformulation of classical mechanics that predicts the same outcomes as classical mechanics. → Hamiltonian dynamics.
hierarchical structure formation
diseš-e sâxtâr-e pâygâni
Fr.: formation de structures hiérarchiques
A cosmological → structure formation model in which the smallest gravitationally bound structures (→ quasars and galaxies) form first, followed by → groups, → galaxy clusters, and → superclusters of galaxies.
diseš-e vine, ~ tasvir
Fr.: formation de l'image
The meeting of light rays emanating from an object after crossing an optical system.