na

[ nah, nuh ]
/ nɑ, nə /
Chiefly Scot.

adverb

no1.
not; in no way; by no means.

conjunction

nor; neither.

Origin of na

before 900; Middle English (north and Scots); in part representing Old English nā ( n(e) not, nor + ā ever; cf. ay1); in part variant of ne; cf. no1

Words nearby na

n/f, n/o, n/s, n/s/f, n/v, na, na-dene, naa, naacp, naafi, naan

Definition for na (2 of 5)

Na

Symbol, Chemistry.

sodium.

Origin of Na

From the New Latin word natrium

Definition for na (3 of 5)

NA

not applicable.
not available.

Definition for na (4 of 5)

n/a

no account.
not applicable.

Definition for na (5 of 5)

N.A.

National Army.
North America.
not applicable.
Microscopy. numerical aperture.

Example sentences from the Web for na

British Dictionary definitions for na (1 of 5)

na 1
/ (nɑː) /

determiner

a variant of nae

British Dictionary definitions for na (2 of 5)

na 2

the internet domain name for

Namibia

British Dictionary definitions for na (3 of 5)

Na

the chemical symbol for

sodium

Word Origin for Na

Latin natrium

British Dictionary definitions for na (4 of 5)

NA

abbreviation for

North America
Netherlands Antilles (international car registration)

British Dictionary definitions for na (5 of 5)

n/a

abbreviation for

not applicable

Medical definitions for na (1 of 2)

Na

The symbol for the elementsodium

Medical definitions for na (2 of 2)

NA

abbr.

Nomina Anatomica (official system for anatomical nomenclature)

Scientific definitions for na (1 of 2)

Na

The symbol for sodium.

Scientific definitions for na (2 of 2)

sodium
[ sō′dē-əm ]

Na

A soft, lightweight, silvery-white metallic element of the alkali group that reacts explosively with water. It is the most abundant alkali metal on Earth, occurring especially in common salt. Sodium is very malleable, and its compounds have many important uses in industry. Atomic number 11; atomic weight 22.99; melting point 97.8°C; boiling point 892°C; specific gravity 0.971; valence 1. See Periodic Table.