oxbow
1428 |
2
(old-fashioned) any cow or bull
on a farm |n| # 4^
—
see also cattle
oxbow
river M it river M it
oxbow I'dksbau;
NAmE -ou/ noun (technical AiH) a bend in a river that almost
forms a full circle; a lake that forms when this bend is separated from the
river M if
Ox-bridge /'Dksbrid3; NAmE
'a:ks-/ noun [U] the universities of
ox-ford /'Dksfad; NAmE
'aiksfard/ noun 1 oxfords [pi.] (especially NAmE) leather shoes that
fasten with laces )
—picture o shoe 2 [U] =
( r
oxi dant /'Dksidant; NAmE 'a:ks-/ noun
(chemistry It) a substance that makes another substance combine with
oxygen ftlh®
oxide /'Dksaid; NAmE 'a:k-/ noun
[U, C] (chemistry It) a compound
of oxygen and another chemical
element ft It $9: iron oxide ftlk^ o an oxide of tin ftlt H oxi dize (BrE also -ise) /'Dksidaiz; NAmE
'a:k-/ verb [VN, V] (chemistry It) to remove one or more electrons from a substance, or to
combine or to make sth combine with oxygen,
especially when this causes metal to become covered with rust ( |£ ) ft It; ( Alt® ) 4^ ► oxidation /.nksi'deijn; NAmE
,a:k-/ noun [U] —compare reduce(4),
reduction(4)
Oxon /'Dksnn; NAmE ‘aiksain/ abbr.
(used after degree titles) of
64:
Alice Tolley MA (Oxon) ftf4®±3tll#r • EE M ( 4"
)
Oxon ian /nk'saunian; NAmE
ark'sou-/ adj. (formal or humorous) relating to
ox-tail /'Dksteil; NAmE
'a:ks-/ noun [U, C] meat from the tail of a cow, used especially for
making soup 41 M ^ () ■. oxtaii
soup 4 oxter
/'Dksta(r);
NAmE 'a:ks-/ noun (BrE, dialect, informal) a person’s armpit
oxy-acet-yl-ene /.Dksia'setaliin; NAmE ,a:k-/ adj.
connected with a mixture of oxygen and acetylene
gas which produces a very hot flame, used especially for
cutting or joining metal ft £
$64 (
M ) : an oxyacetylene
torch ftZij&'Jh oxy-gen /‘Dksid30n; NAmE 'a:k-/ noun [U]
(symb Q) a chemical element.
Oxygen is a gas that is present in air and water and is necessary for people,
animals and plants to live, ft; ft ft
oxy-gen-ate /'nksid3aneit; NAmE 'a:k-/ verb [VN] (technical A ill) to supply sth
with oxygen #tft; ft ft ► oxy- gen-ation noun [U]
oxy-gen-ator /'Dksid30neita(r); NAmE 'a:ks-/ noun 1 (medical Eg) a device for
putting oxygen into the blood ft'g-Ali
2 a water plant that puts oxygen into the water around it Hft/K#;
’oxygen bar noun a place where you can
pay to breathe pure oxygen in order to improve your health and help you relax
ftnfi
’
oxygen mask noun a device placed over the nose and mouth
through which a person can breathe oxygen,
for example in an aircraft or a hospital ft ft® ft; ft ft
’oxygen tent noun (medical (g) a structure like a
tent which can be used to increase sb’s supply of oxygen and help them to
breathe ( ,%!fcfift4]64 ) ft#; ft
ftft
oxymoron /.Dksi’moinm; NAmE ,a:ksi'mo:ra:n/ noun (technical AiH) a phrase that
combines two words that seem to be the opposite of each other, for example a deafening silence oy exclamation = oi
oyez (also oyes) /au'jei; NAmE ou-/ exclamation used by a town crier or an officer in court to
tell people to be quiet and pay attention ( ft)
oys-ter /‘oista(r)/ noun
a large flat shellfish. Some
types of oyster can be eaten and others produce shiny white jewels called pearls. 4±$g; 46: Oyster beds, on the mudflats, are a form
of fish farming.
—picture
o shellfish n>T71 see
WORLD
oys-ter-catch-er /'oist0kaBtJa(r); NAmE 'oistark-/ noun a black bird with long
legs and a long red beak that lives near the coast and feeds on shellfish
64'^ft )
’oyster mushroom noun a type of wide, flat fungus that grows on trees and that you
can eat 463£ .oyster ’sauce noun [U] a sauce made with oysters, used in SE Asian cooking 46® (
^ )
oy vey /.oi ‘vei/ exclamation used for showing disappointment
or sadness (mainly by Yiddish speakers or Jewish people) (
±^Ai#li!c.l&i£ft4$#[;AAI£4],
*km.mm) n, aw
Oz /dz; NAmE a:z/
noun [U] (BrE, AustralE, NZE, informal) Australia HAftjik;
oz
abbr. ounce(s) : 4oz sugar * 4 ^ 64 ozone I'duzaun; NAmE ‘ouzoun/ noun [U] 1 (chemistry It) a poisonous gas
with a strong smell that is a form of oxygen
ft ft 2 (BrE, informal) air near the sea that
smells fresh and pure i§i£64itfr$ft , ozone-’friend ly adj. not containing
substances that will damage the ozone
layer A iS ft ft H 64; 4^ ffi IS ftftJitrM64
’ozone hole noun an area in the ozone
layer where the amount of ozone has
been very much reduced so that harmful radiation
from the sun can pass through it ft
ftp
’ozone layer noun [sing.] a layer of ozone high above the earth’s surface
that helps to protect the earth from harmful radiation
from the sun ftftjg Oz-zie = Aussie