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Theria. Marsupialia. Placentalia. A mammal (from Latin mamma 'breast') [1] is a vertebrate animal of the class Mammalia ( / məˈmeɪli.ə / ). Mammals are characterized by the presence of milk -producing mammary glands for feeding their young, a neocortex region of the brain, fur or hair, and three middle ear bones.
Common ash ( Fraxinus excelsior ), a deciduous broad-leaved ( angiosperm) tree. European larch ( Larix decidua ), a coniferous tree which is also deciduous. In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only ...
Maize / meɪz / ( Zea mays ), also known as corn in North American and Australian English, is a tall stout grass that produces cereal grain. It was domesticated by indigenous peoples in southern Mexico about 9,000 years ago from wild teosinte. Native Americans planted it alongside beans and squashes in the Three Sisters polyculture.
- Name
- History
- Use in Writing Systems
- Other Uses
- Related Characters
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In English, the name of the letter is the long A sound, pronounced /ˈeɪ/. Its name in most other languages matches the letter's pronunciation in open syllables.
The earliest known ancestor of "A" is aleph—the first letter of the Phoenician alphabet, also written 'aleph—where it represented a glottal stop [ʔ], as Phoenician only used consonantal letters. In turn, the ancestor of aleph may have been a pictogram of an ox head in proto-Sinaitic script influenced by Egyptian hieroglyphs, styled as a triangular ...
English
In modern English orthography, the letter ⟨a⟩ represents at least seven different vowel sounds, here represented using the vowels of Received Pronunciation, with effects of ⟨r⟩ ignored and mergers in General Americanmentioned where relevant: 1. the near-open front unrounded vowel /æ/ as in pad 2. the open back unrounded vowel /ɑː/ as in father—merged with /ɒ/ as /ɑ/ in General American—which is closer to its original Latin and Greek sound 3. the open back rounded vowel /ɒ/ (merged with /ɑː/ a...
Other languages
In most languages that use the Latin alphabet, ⟨a⟩ denotes an open unrounded vowel, such as /a/, /ä/, or /ɑ/. An exception is Saanich, in which ⟨a⟩—and the glyph ⟨Á⟩—stands for a close-mid front unrounded vowel /e/.
Other systems
1. In the International Phonetic Alphabet, ⟨a⟩ is used for the open front unrounded vowel, ⟨ä⟩ is used for the open central unrounded vowel, and ⟨ɑ⟩ is used for the open back unrounded vowel. 2. In X-SAMPA, ⟨a⟩ is used for the open front unrounded vowel and ⟨A⟩ is used for the open back unrounded vowel.
When using base-16 notation, ⟨A⟩ is conventionally used as the numeral corresponding to the number 10 in decimal.In algebra, the letter a along with various other letters of the alphabet is often used to denote a variable, with various conventional meanings in different areas of mathematics. In 1637, René Des...In geometry, capital Latin letters are used to denote objects including line segments, lines, and rays A capital A is also typically used as one of the letters to represent an angle in a triangle,..."A" is often used to denote something or someone of a better or more prestigious quality or status: A−, A or A+, the best grade that can be assigned by teachers for students' schoolwork; "A grade"...Related characters in the Latin alphabet
1. ⟨Æ æ⟩: a ligature of ⟨AE⟩originally used in Latin 2. ⟨A⟩ with diacritics: Å å Ǻ ǻ Ḁ ḁ ẚ Ă ă Ặ ặ Ắ ắ Ằ ằ Ẳ ẳ Ẵ ẵ Ȃ ȃ Â â Ậ ậ Ấ ấ Ầ ầ Ẫ ẫ Ẩ ẩ Ả ả Ǎ ǎ Ⱥ ⱥ Ȧ ȧ Ǡ ǡ Ạ ạ Ä ä Ǟ ǟ À à Ȁ ȁ Á á Ā ā Ā̀ ā̀ Ã ã Ą ą Ą́ ą́ Ą̃ ą̃ A̲ a̲ ᶏ 3. Phonetic alphabet symbols related to A—the International Phonetic Alphabet only uses lowercase, but uppercase forms are used in some other writing systems: 3.1. ⟨Ɑ ɑ⟩: Latin alpha, represents an open back unrounded vowelin the IPA 3.2. ⟨ᶐ⟩: Latin small alpha with a ret...
Derived signs, symbols and abbreviations
1. ⟨ª⟩: ordinal indicator 2. ⟨Å⟩: Ångströmsign 3. ⟨∀⟩: turned capital letter A, used in predicate logic to specify universal quantification("for all") 4. ⟨@⟩: At sign 5. ⟨₳⟩: Argentine austral 6. ⟨Ⓐ⟩: anarchy symbol
Ancestor and sibling letters
1. ⟨𐤀⟩: Phoenician aleph, from which the following symbols originally derive 1.1. ⟨Α α⟩: Greek letter alpha, from which the following letters derive 1.1.1. ⟨А а⟩: Cyrillic letter A 1.1.2. ⟨Ⲁ ⲁ⟩: Copticletter alpha 1.1.3. ⟨𐌀⟩: Old Italic A, which is the ancestor of modern Latin A 1.1.3.1. ⟨ᚨ⟩: Runic letter ansuz, which probably derives from old Italic A 1.1.4. ⟨𐌰⟩: Gothicletter aza 2. ⟨Ա ա⟩: Armenian letter ayb
Computing
The Latin letters ⟨A⟩ and ⟨a⟩ have Unicode encodings U+0041 A LATIN CAPITAL LETTER A and U+0061 a LATIN SMALL LETTER A. These are the same code points as were used in ASCII and ISO 8859. There are also precomposed character encodings for ⟨A⟩ and ⟨a⟩ with diacritics, for most of those listed above; the remainder are produced using combining diacritics. Variant forms of the letter have unique code points for specialist use: the alphanumeric symbols set in mathematics and science, Latin alpha in...
Texts on Wikisource:Glossary of mathematical symbols. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various ...
Canva is a graphic design platform that provides tools for creating social media graphics, presentations, promotional merchandise and websites. [6] [7] [8] Launched in Australia in 2013, the service offers design tools that are easy-to-use for individuals and companies. [9] Its offerings include templates for presentations, posters, and social ...
Birds are a group of warm-blooded vertebrates constituting the class Aves ( / ˈeɪviːz / ), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
