B

B ¹

1. The symbol for the element boron.

2. The symbol for magnetic flux density.

---

b ¹  (b) or B (b)

n. pl. b's or B's also bs or Bs

1. The second letter of the modern English alphabet.

2. Any of the speech sounds represented by the letter b.

3. The second in a series.

4. Something shaped like the letter B.

5. B The second best or second highest in quality or rank: a mark of B on an English theme.

6. Music

a. The seventh tone in the scale of C major or the second tone in the relative minor scale.

b. A key or scale in which B is the tonic.

c. A written or printed note representing this tone.

d. A string, key, or pipe tuned to the pitch of this tone.

7. B One of the four major blood groups in the ABO system. Individuals with this blood group have the B antigen on the surface of their red blood cells, and the anti-A antibody in their blood serum.

---

b ²

abbr.

1. Physics barn

2. or B bel

3. bottom quark

4. breadth

---

b or B

Noun

pl [b's, B's] or Bs

1. the second letter of the English alphabet

2. from A to B See a (sense 2)

---

b Cricket

a. bowled

b. bye

---

B

1. Music the seventh note of the scale of C major

2. the second in a series, class, or rank

3. Chem boron

4. Chess bishop

---

B

1. The symbol for boron.

2. The symbol for magnetic field.

Thesaurus

Noun	1.	B - aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil bacillus anthrax bacillus, Bacillus anthracis - a species of bacillus that causes anthrax in humans and in animals (cattle and swine and sheep and rabbits and mice and guinea pigs); can be used a bioweapon Bacillus globigii, Bacillus subtilis, grass bacillus, hay bacillus - a species of bacillus found in soil and decomposing organic matter; some strains produce antibiotics Yersinia pestis - a bacillus bacterium that causes the plague; aerosolized bacteria can be used as a bioweapon eubacteria, eubacterium, true bacteria - a large group of bacteria having rigid cell walls; motile types have flagella genus Bacillus - type genus of the Bacillaceae; includes many saprophytes important in decay of organic matter and a number of parasites
	2.	B - originally thought to be a single vitamin but now separated into several B vitamins B complex, B vitamin, B-complex vitamin, vitamin B, vitamin B complex choline - a B-complex vitamin that is a constituent of lecithin; essential in the metabolism of fat inositol - an optically inactive alcohol that is a component of the vitamin B complex pantothen, pantothenic acid - a vitamin of the vitamin B complex that performs an important role in the oxidation of fats and carbohydrates and certain amino acids; occurs in many foods water-soluble vitamin - any vitamin that is soluble in water aneurin, antiberiberi factor, thiamin, thiamine, vitamin B1 - a B vitamin that prevents beriberi; maintains appetite and growth antipernicious anemia factor, cobalamin, cyanocobalamin, vitamin B12 - a B vitamin that is used to treat pernicious anemia hepatoflavin, lactoflavin, ovoflavin, riboflavin, vitamin B2, vitamin G - a B vitamin that prevents skin lesions and weight loss adermin, pyridoxal, pyridoxamine, pyridoxine, vitamin B6 - a B vitamin that is essential for metabolism of amino acids and starch folacin, folate, folic acid, pteroylglutamic acid, pteroylmonoglutamic acid, vitamin Bc, vitamin M - a B vitamin that is essential for cell growth and reproduction niacin, nicotinic acid - a B vitamin essential for the normal function of the nervous system and the gastrointestinal tract biotin, vitamin H - a B vitamin that aids in body growth
	3.	B - a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder atomic number 5, boron chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter borax - an ore of boron consisting of hydrated sodium borate; used as a flux or cleansing agent kernite - a light soft mineral consisting of hydrated sodium borate in crystalline form; an important source of boron
	4.	B - a logarithmic unit of sound intensity equal to 10 decibels Bel sound unit - any acoustic unit of measurement
	5.	b - (physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter barn atomic physics, nuclear physics, nucleonics - the branch of physics that studies the internal structure of atomic nuclei area unit, square measure - a system of units used to measure areas
	6.	b - the 2nd letter of the Roman alphabet Latin alphabet, Roman alphabet - the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters"
	7.	B - the blood group whose red cells carry the B antigen group B, type B blood group, blood type - human blood cells (usually just the red blood cells) that have the same antigens

Translations

B, b [biː] n (letter) → B, b f;

(SCOL) (mark) → N;

(MUS) → si m;

B for Benjamin (US);

B for Baker → B de Barcelona;

B road (BRIT) (AUT) → carretera secundaria

---

B, b [biː] n (= letter) → B, b m;

(Scol) (= mark); B;

(Mus);

B → si m;

B for Benjamin (US);

B for Baker → B comme Berthe;

B road n (Brit) (Aut) → route départementale

---

B¹, b [biː] n (letter) → B nt, b nt;

(Scol) → Zwei f, Gut nt;

B for Benjamin, B for Baker (US) → B wie Bertha;

B road (Brit) → Landstraße f

---

B² [biː] n (Mus) → H nt, h nt

---

B, b [biː] n (letter) → B, b f or m inv;

(SCOL) (mark) → 8 (buono);

(MUS): B → si m;

B for Benjamin (US);

B for Baker → B come Bologna;

B road n (BRIT ) (AUT) → strada secondaria