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单词 pb
释义

Pbn.

Brit. /piːˈbiː/, U.S. /piˈbi/
Origin: Formed within English, by clipping or shortening; modelled on a Latin lexical item. Etymon: lead n.1
Etymology: Symbolic abbreviation for lead n.1, after use as symbolic abbreviation for classical Latin plumbum (see plumbo- comb. form) in the system introduced by Berzelius (see quot. 1814).
Chemistry.
The element lead.
ΚΠ
1814 tr. J. J. Berzelius in Ann. Philos. 3 356 Plumbum, lead (Pb).
1867 C. L. Bloxam Chem. 349 With the exception, perhaps, of the ores of iron, none is more abundant in this country than the chief ore of lead, galena, a sulphide of lead (PbS).
1947 Nucleonics Dec. 44/1 The best source of radioactive lead is the decay product of the radium series, Pb210 (RaD).
1968 Jrnl. Pediatrics 73 3 (caption) In each chelate Pb is bound in a five-membered heterocyclic ring.
1994 D. F. Shriver et al. Inorg. Chem. (ed. 2) xviii. 777 The intercalated M atom may be a variety of metals such as Li, Mn, Fe, Cd, and Pb.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

> as lemmas

PB
PB n. (also pb) North American colloquial peanut butter (recorded earliest in PBJ n.).
ΘΚΠ
the world > food and drink > food > additive > relish > [noun] > spread > peanut butter
peanut butter1896
PBJ1971
PB & J1973
PB1976
1976 Progress Rev. (Park City, Iowa) 1 Sept. 11/4 School lunch menu... Mashed potato, creamed beef, green beans, peach sauce, PB sandwich, milk.
2001 Org. Style Sept. 31/1 My mass-market PB habit (and the guilt that went along with it) were gone the moment I tasted Whole Kids Organic Peanut Butter.
extracted from Pn.
PB
PB n. (also pb) Sport personal best (time or score for an event) (see personal adj., n., and adv. Compounds).
ΚΠ
1971 Cambr. Univ. Athletics Club News 24 Nov. 1 P.b.'s or equal to p.b.'s by our vaulting quartet was a very creditable performance.
1985 Times 21 Aug. 22/5 Modern Pentathlon... Overall Individual: (after three events): 1, A Mizser (Hun), 3292 pb; 2, A Starostin (USSR), 3276 [etc.].
1991 Running Apr. 52/1 Publicity-shy James Zarei is a legend in the world of ultra running. But Gentleman James never runs to win or bothers with pbs.
1999 Athletics Weekly 11 Aug. 19/2 17-year-old Scotcher, winner of the recent European Youth Olympic title, produced her trademark strong finish to get fifth in 54.28—a PB.
extracted from Pn.
P.B.
P.B. n. ‘poor bloody’; see PBI n.
ΚΠ
1949 F. Swinnerton Doctor's Wife comes to Stay 149 He's only the P.B. Author.
extracted from Pn.
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n.1814
as lemmas
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