ob.

¹

abbreviation for

1. he died; she died.

ob.

²

abbreviation for

1. incidentally.

ob.

³

abbreviation for

1. oboe.
2. Meteorology. observation.

Ob

⁴

[ awb, ob; Russian awp ]

noun

1. a river in the W Russian Federation in Asia, flowing NW to the Gulf of Ob. 2,500 miles (4,025 km) long.
2. Gulf of, an inlet of the Arctic Ocean. About 500 miles (800 km) long.

OB

⁵

abbreviation for

1. Also ob Medicine/Medical.
   1. obstetric.
   2. obstetrician.
   3. obstetrics.
2. off Broadway.
3. opening of books.
4. ordered back.

ob-

⁶

1. a prefix meaning “toward,” “to,” “on,” “over,” “against,” originally occurring in loanwords from Latin, but now used also, with the sense of “reversely,” “inversely,” to form New Latin and English scientific terms: object; obligate; oblanceolate.

O.B.

⁷

or O/B.

abbreviation for

1. opening of books.
2. ordered back.

Ob

¹

/ ɔpj /

noun

1. a river in N central Russia, formed at Bisk by the confluence of the Biya and Katun Rivers and flowing generally north to the Gulf of Ob (an inlet of the Arctic Ocean): one of the largest rivers in the world, with a drainage basin of about 2 930 000 sq km (1 131 000 sq miles). Length: 3682 km (2287 miles)

OB

²

abbreviation for

1. Old Boy
2. outside broadcast

ob.

³

abbreviation for

1. (on tombstones) obiit
2. obiter
3. oboe

ob-

⁴

prefix

1. inverse or inversely

   obovate

Word History and Origins

Origin of ob.¹

From the Latin word obiit

Origin of ob.²

From the Latin word obiter

Origin of ob.³

Middle English (from Old French ) from Latin, representing ob (preposition); in some scientific terms, from New Latin, Latin ob- (prefix)

Word History and Origins

Origin of ob.¹

(for sense 1) Latin: he (or she) died; (for sense 2) Latin: incidentally; in passing

Origin of ob.²

from Old French, from Latin ob. In compound words of Latin origin, ob- (and oc-, of-, op- ) indicates: to, towards ( object ); against ( oppose ); away from ( obsolete ); before ( obstetric ); down, over ( obtect ); for the sake of ( obsecrate ); and is used as an intensifier ( oblong )

Example Sentences

Endeavor said it will sell OpenBet, along with sports data provider IMG Arena, to OB Global Holdings LLC for $450 million in cash and debt, an amount much less than what Endeavor paid for OpenBet two years ago.

From Los Angeles Times

Around 9:30 a.m., the OB on duty, Dr. Marcelo Totorica, couldn’t find a fetal heart rate, according to records; he told the family he was sorry for their loss.

From Salon

The next day, Dr. Shirley Lima, an OB on duty, diagnosed an “inevitable” miscarriage.

From Salon

He left its physician network in 2018 but retained hospital privileges at Cedars-Sinai while working in private practice at Rodeo Drive Women’s Health Center and Beverly Hills OB/GYN, which were also named as defendants in the lawsuit.

From Los Angeles Times

Within Thurman’s first hours at the hospital, which says it is staffed at all hours with an OB who specializes in hospital care, it should have been clear that she was in danger, medical experts told ProPublica.

From Salon