at
1
[ at; unstressed uh t, it ]
/ æt; unstressed ət, ɪt /
preposition
Idioms for at
be at (someone),
to be sexually aggressive toward (a person): She's pregnant again because he's at her morning, noon, and night.
where it's at, Informal.
the place where the most interesting or exciting things happen: Emma says that Rome is definitely where it's at now.
Origin of at
1
before 900; Middle English; Old English
æt; cognate with Old Frisian
et, Old Norse, Old Saxon, Gothic
at, Old High German
az, Latin, Old Welsh, Old Breton
ad, Greek
a- (< a pre-Hellenic IE substratum language), Oscan, Old Irish, Gaulish, Phrygian
ad-
Words nearby at
Definition for at (2 of 9)
at
2
[ aht, at ]
/ ɑt, æt /
noun
a money of account of Laos, the 100th part of a kip.
Origin of at
2
1950–55; < Lao; compare Thai
ʔàt formerly, a copper coin worth one eighth of a füang, ultimately < Pali
aṭṭha
eight
Definition for at (3 of 9)
Definition for at (4 of 9)
Definition for at (5 of 9)
Definition for at (6 of 9)
Definition for at (7 of 9)
Definition for at (8 of 9)
Definition for at (9 of 9)
A.T.
Atlantic time.
British Dictionary definitions for at (1 of 6)
at
1
/ (æt) /
preposition
Word Origin for at
Old English
æt; related to Old Norse
at to, Latin
ad to
British Dictionary definitions for at (2 of 6)
at
2
/ (ɑːt, æt) /
noun plural at
a Laotian monetary unit worth one hundredth of a kip
Word Origin for at
from Thai
British Dictionary definitions for at (3 of 6)
at
3
the internet domain name for
Austria
British Dictionary definitions for at (4 of 6)
At
the chemical symbol for
astatine
symbol for
Also: A
ampere-turn
British Dictionary definitions for at (5 of 6)
AT
abbreviation for
attainment target
British Dictionary definitions for at (6 of 6)
at.
abbreviation for
Also: atm
atmosphere (unit of pressure)
atomic
Medical definitions for at (1 of 2)
At
The symbol for the elementastatine
Medical definitions for at (2 of 2)
at-
pref.
Variant ofad-
Scientific definitions for at (1 of 2)
At
The symbol for astatine.
Scientific definitions for at (2 of 2)
astatine
[ ăs′tə-tēn′ ]
At
A highly unstable, rare, radioactive element that is the heaviest of the halogen elements. Its most stable isotope has a half-life of 8.3 hours. Atomic number 85; melting point 302°C; boiling point 337°C; valence probably 1, 3, 5, 7. See Periodic Table.