Jump to:

• Ob
  Ob

  noun

  a river in the W Russian Federation in Asia, flowing NW to the Gulf of Ob. 2,500 miles (4,025 km) long.
• OB
  OB

  abbreviation

  Also ob
• ob-
  ob-

  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.
• ob.
  ob.

  abbreviation

  he died; she died.
• O.B.
  O.B.

  abbreviation

  opening of books.

Ob

¹ American  

[awb, ob, awp] / ɔb, ɒb, ɔp /

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 ² American  

abbreviation

1. Medicine/Medical. Also ob

   1. obstetric.

   2. obstetrician.

   3. obstetrics.

2. off Broadway.

3. opening of books.

4. ordered back.

---

ob- ³ American  

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.

---

ob. ⁴ American  

abbreviation

1. he died; she died.

---

ob. ⁵ American  

abbreviation

1. incidentally.

---

ob. ⁶ American  

abbreviation

1. oboe.

2. Meteorology. observation.

---

O.B. ⁷ American  

Or O/B.

abbreviation

1. opening of books.

2. ordered back.

---

ob. ¹ British  

abbreviation

1. (on tombstones) obiit

2. obiter

3. oboe

---

OB ² British  

abbreviation

1. Old Boy

2. outside broadcast

---

Ob ³ British  

/ 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- ⁴ British  

prefix

1. inverse or inversely

   obovate

---

Etymology

Origin of ob-³

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

Origin of ob.⁴

From the Latin word obiit

Origin of ob.⁵

From the Latin word obiter

Example Sentences

He is a marvelous ob- server of externals and sometimes� but not always�of inner truths about his sitters.

From Time Magazine Archive

When the land suddenly slides, most of the old familiar patterns are ob- literated�and Johnson's triumph was achieved by smashing across regional, economic and ideological lines that had long held firm for the G.O.P.

From Time Magazine Archive

This ob- noxious tonic possesses many of the vitamins necessary to discourage rickets, gives strength to rickety children.

From Time Magazine Archive

A subscription of $1,000 was voted to help ob- tain a pardon for Mooney.

From Time Magazine Archive

The school created the very first teaching hospital in the world, a place where the sick were treated and young doctors learned their craft, as well as a fine ob- servatory to track the heavens.

From "Sugar Changed the World: A Story of Magic, Spice, Slavery, Freedom, and Science" by Marc Aronson