Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Semiquaver \Sem"i*qua`ver\ (s[e^]m"[i^]*kw[=a]`v[~e]r), n. (Mus.) A note of half the duration of the quaver; -- now usually called a sixteenth note.
Wiktionary
n. (context music English) a note that has 1/16 the value of a whole note
WordNet
n. a musical note having the time value of a sixteenth of a whole note [syn: semiquaver]
Wikipedia
thumb|right|Figure 1. A 16th note with stem facing up, a 16th note with stem facing down, and a 16th rest. thumb|right|Figure 2. Four 16th notes beamed together.
In music, a 16th note ( American) or semiquaver ( British) is a note played for half the duration of an eighth note (quaver), hence the name. It is the equivalent of the semifusa in mensural notation, first found in 15th-century notation .
Sixteenth notes are notated with an oval, filled-in note head and a straight note stem with two flags. (see Figure 1). A corresponding symbol is the 16th rest (or semiquaver rest), which denotes a silence for the same duration. As with all notes with stems, 16th notes are drawn with stems to the right of the notehead, facing up, when they are below the middle line of the musical staff. When they are on or above the middle line, they are drawn with stems on the left of the note head, facing down. Flags are always on the right side of the stem, and curve to the right. On stems facing up, the flags start at the top and curve down; for downward facing stems, the flags start at the bottom of the stem and curve up. When multiple 16th notes or eighth notes (or 32nd notes, etc.) are next to each other, the flags may be connected with a beam, like the notes in Figure 2. Note the similarities in notating 16th notes and eighth notes. Similar rules apply to smaller divisions such as 32nd notes (demisemiquavers) and 64th notes (hemidemisemiquavers).
In Unicode, U+266C is a pair of beamed semiquavers.
The note derives from the semifusa in mensural notation. However, semifusa also designates the modern 64th note in Spanish, Catalan and Portuguese.
The name of this note (and rest) in different languages varies greatly:
Language
note name
rest name
Catalan
semicorxera
silenci de semicorxera
Chinese
十六分音符 ( pinyin: shíliùfēn yīnfú)
十六分休止符 ( pinyin: shíliùfēn xiūzhǐfú)
Danish
sekstenedelsnode
sekstenedelspause
Dutch
zestiende noot
zestiende rust
Finnish
kuudestoistaosanuotti
kuudestoistaosatauko
French
double-croche
quart de soupir
German
Sechzehntelnote
Sechzehntelpause
Greek
δέκατο έκτο
παύση δεκάτου έκτου
Italian
semicroma
pausa di semicroma
Japanese
16分音符
16分休符
Korean
16분음표(十六分音標 simnyukbun eumpyo)
16분쉼표(十六分-標 simnyukbun swimpyo)
Portuguese
semicolcheia
pausa de semicolcheia
Romanian
şaisprezecime
pauză de şaisprezecime
Russian
шестнадцатая нота
шестнадцатая пауза
Serbian
šesnaestin(k)a / песнаестина
šesnaestinska pauza / шеснаестинска пауза
Spanish
semicorchea
silencio de semicorchea
Swedish
sextondelsnot
sextondelspaus
Thai
โน๊ตตัวเขบ็ตสองชั้น
ตัวหยุดตัวเขบ็ตสองชั้น