free-fallingadj.

Brit.

/ˌfriːˈfɔːlɪŋ/, U.S.

/ˌfriˈfɔlɪŋ/,

/ˌfriˈfɑlɪŋ/

Origin: Formed within English, by compounding. Etymons: free adv., falling adj.

Etymology: < free adv. + falling adj. Compare German frei fallend (1830 or earlier). Compare later free fall n.The concept of unimpeded motion in a vacuum is discussed by Galileo, in chapter 10 of De motu antiquiora (1590).

That falls or drops without check or restraint; that hangs down loosely; spec. that falls or moves under the influence of gravity alone, without either propulsion or drag; that is in free fall. Also figurative.

ΘΚΠ

the world > movement > motion in a certain direction > downward motion > falling > [adjective] > dropping or falling vertically > under no forces other than gravity

free-falling1842

free fall1851

1661 T. Salusbury tr. Galileo Syst. World in Math. Coll. & Transl. I. 120 In case one should deny to Ptolomy and Aristotle that weights in falling freely from on high [It. i graui nel cader liberamente da alto], descend by a right and perpendicular line, that is, directly to the centre, what means would he use to prove it?]

1842 Chambers's Information for People (new ed.) II. 24/1 It falls or rolls down as much less speedily than a free falling body (omitting the loss by friction) as the length of the inclined plane is greater than its height.

1855 Jrnl. Soc. Arts 3 507/2 The introduction, by Mr. Kind, of the free-falling tool.

1935 Metrop. Mus. Art Bull. 30 217/1 The crown is differentiated from the free-falling locks and the ringlets at the bottom are of varying shapes and sizes.

1959 H. Barnes Oceanogr. & Marine Biol. 66 (caption) Method of working Stetson free-falling corer.

1981 E. R. Harrison Cosmology viii. 164/1 The Einstein form of the principle of equivalence states that inertial and free-falling systems are entirely equivalent.

1993 A. B. Brook Hard Way xl. 232 Rudnicki's platform was difficult to follow, partly because of its cavalier attitude towards the elements of grammar, partly because of its free-falling ideas.

1997 A. Deignan in K. Harvey & C. Shalom Lang. & Desire i. 30 Nothing separated her from him. There was only love and this insane freefalling bliss.

2004 B. Bunch & A. Hellemans Hist. Sci. & Technol. 275/1 He describes ‘Atwood's machine’, which accurately demonstrates the acceleration of a free-falling body.

This is a new entry (OED Third Edition, June 2008; most recently modified version published online March 2022).

单词	free-falling
释义	free-fallingadj. Brit. /ˌfriːˈfɔːlɪŋ/, U.S. /ˌfriˈfɔlɪŋ/, /ˌfriˈfɑlɪŋ/ Origin: Formed within English, by compounding. Etymons: free adv., falling adj. Etymology: < free adv. + falling adj. Compare German frei fallend (1830 or earlier). Compare later free fall n.The concept of unimpeded motion in a vacuum is discussed by Galileo, in chapter 10 of De motu antiquiora (1590). That falls or drops without check or restraint; that hangs down loosely; spec. that falls or moves under the influence of gravity alone, without either propulsion or drag; that is in free fall. Also figurative. ΘΚΠ the world > movement > motion in a certain direction > downward motion > falling > [adjective] > dropping or falling vertically > under no forces other than gravity free-falling1842 free fall1851 1661 T. Salusbury tr. Galileo Syst. World in Math. Coll. & Transl. I. 120 In case one should deny to Ptolomy and Aristotle that weights in falling freely from on high [It. i graui nel cader liberamente da alto], descend by a right and perpendicular line, that is, directly to the centre, what means would he use to prove it?] 1842 Chambers's Information for People (new ed.) II. 24/1 It falls or rolls down as much less speedily than a free falling body (omitting the loss by friction) as the length of the inclined plane is greater than its height. 1855 Jrnl. Soc. Arts 3 507/2 The introduction, by Mr. Kind, of the free-falling tool. 1935 Metrop. Mus. Art Bull. 30 217/1 The crown is differentiated from the free-falling locks and the ringlets at the bottom are of varying shapes and sizes. 1959 H. Barnes Oceanogr. & Marine Biol. 66 (caption) Method of working Stetson free-falling corer. 1981 E. R. Harrison Cosmology viii. 164/1 The Einstein form of the principle of equivalence states that inertial and free-falling systems are entirely equivalent. 1993 A. B. Brook Hard Way xl. 232 Rudnicki's platform was difficult to follow, partly because of its cavalier attitude towards the elements of grammar, partly because of its free-falling ideas. 1997 A. Deignan in K. Harvey & C. Shalom Lang. & Desire i. 30 Nothing separated her from him. There was only love and this insane freefalling bliss. 2004 B. Bunch & A. Hellemans Hist. Sci. & Technol. 275/1 He describes ‘Atwood's machine’, which accurately demonstrates the acceleration of a free-falling body. This is a new entry (OED Third Edition, June 2008; most recently modified version published online March 2022). < adj.1842
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