deltoid

English

The deltoid muscle is highlighted in red.

Etymology

From Latin deltoideus, which was in turn from Ancient Greek adjective δελτοειδής (deltoeidḗs). See also: δέλτα (délta), the fourth letter of the Greek alphabet.

Pronunciation

• (UK) IPA^(key): /ˈdɛɫtɔɪd/

• Audio (US):

  (file)

Noun

deltoid (plural deltoids)

1. (anatomy) The deltoid muscle, a triangular muscle on the human shoulder.

   Synonym: (slang) delt

2. (anatomy) The deltoid ligament, a triangular ligament on the human ankle.
3. (geometry) A kite (quadrilateral having two pairs of edges of equal length, the edges of each pair touching each other at one end).
4. (geometry) A deltoid curve (hypocycloid with three cusps).

Derived terms

• anterior deltoid
• bideltoid
• intradeltoid
• radiodeltoid
• spinodeltoid

Translations

triangular muscle on the human shoulder

• Catalan: deltoide m
• Chinese:

  Mandarin: 三角肌 (zh) (sānjiǎojī)

• Finnish: hartialihas (fi)
• French: deltoïde (fr) m
• Hungarian: deltaizom (hu)
• Ido: deltoido (io)
• Japanese: 三角筋 (さんかくきん, sankakukin)
• Korean: 삼각근 (ko) (samgakgeun)
• Latin: musculus deltoides m
• Maori: ua pokohiwi
• Spanish: (músculo) deltoides m, muñón (es) m

triangular ligament on the human ankle

• Chinese:

  Mandarin: please add this translation if you can

• Finnish: deltaligamentti
• Japanese: 三角靱帯 (さんかくじんたい, sankakujintai)

Adjective

deltoid (not comparable)

1. In the shape of the uppercase Greek letter delta (Δ); triangular.
   1. (botany, of leaves) Of a triangular or roughly triangular shape and attached to the stem via the side.
2. Of or pertaining to the deltoid muscle.

Derived terms

• deltoidal
• deltoid curve
• deltoid moth
• deltoid muscle
• obdeltoid
• subdeltoid

Translations

in the shape of Δ — see triangular

of or connected with deltoid muscle

• Catalan: deltoïdal (ca)
• Chinese:

  Mandarin: please add this translation if you can

• Finnish: hartialihas- (fi), hartialihaksen
• French: deltoïde (fr)
• Russian: дельтовидный (ru) (delʹtovidnyj)
• Spanish: deltoides (es), deltoideo

botany: of triangular shape

• Chinese:

  Mandarin: please add this translation if you can

• Finnish: kolmiomainen (fi)
• Irish: triantánach

Hungarian

Etymology

Borrowed from English deltoid.

Pronunciation

• IPA^(key): [ˈdɛltojid]
• Hyphenation: del‧to‧id
• Rhymes: -id

Noun

deltoid (plural deltoidok)

1. (geometry) kite (a quadrilateral having two pairs of edges of equal length, the edges of each pair being consecutive)

Declension

Inflection (stem in -o-, back harmony)

	singular	plural
nominative	deltoid	deltoidok
accusative	deltoidot	deltoidokat
dative	deltoidnak	deltoidoknak
instrumental	deltoiddal	deltoidokkal
causal-final	deltoidért	deltoidokért
translative	deltoiddá	deltoidokká
terminative	deltoidig	deltoidokig
essive-formal	deltoidként	deltoidokként
essive-modal	—	—
inessive	deltoidban	deltoidokban
superessive	deltoidon	deltoidokon
adessive	deltoidnál	deltoidoknál
illative	deltoidba	deltoidokba
sublative	deltoidra	deltoidokra
allative	deltoidhoz	deltoidokhoz
elative	deltoidból	deltoidokból
delative	deltoidról	deltoidokról
ablative	deltoidtól	deltoidoktól
non-attributive possessive – singular	deltoidé	deltoidoké
non-attributive possessive – plural	deltoidéi	deltoidokéi

Possessive forms of deltoid

possessor	single possession	multiple possessions
1st person sing.	deltoidom	deltoidjaim
2nd person sing.	deltoidod	deltoidjaid
3rd person sing.	deltoidja	deltoidjai
1st person plural	deltoidunk	deltoidjaink
2nd person plural	deltoidotok	deltoidjaitok
3rd person plural	deltoidjuk	deltoidjaik

Further reading

• deltoid in Géza Bárczi, László Országh, et al., editors, A magyar nyelv értelmező szótára [The Explanatory Dictionary of the Hungarian Language] (ÉrtSz.), Budapest: Akadémiai Kiadó, 1959–1962. Fifth ed., 1992: →ISBN.
• deltoid in Nóra Ittzés, editor, A magyar nyelv nagyszótára [A Comprehensive Dictionary of the Hungarian Language] (Nszt.), Budapest: Akadémiai Kiadó, 2006–2031 (work in progress; published a–ez as of 2024).

Polish

deltoid

Etymology

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Pronunciation

• IPA^(key): /dɛlˈtɔ.it/

• Audio:

  (file)

• Rhymes: -ɔit
• Syllabification: del‧to‧id

Noun

deltoid m inan

1. (geometry) kite

   Synonym: latawiec

Declension

Declension of deltoid

	singular	plural
nominative	deltoid	deltoidy
genitive	deltoidu	deltoidów
dative	deltoidowi	deltoidom
accusative	deltoid	deltoidy
instrumental	deltoidem	deltoidami
locative	deltoidzie	deltoidach
vocative	deltoidzie	deltoidy

Further reading

• deltoid in Polish dictionaries at PWN

Romanian

Etymology

Borrowed from French deltoïde.

Adjective

deltoid m or n (feminine singular deltoidă, masculine plural deltoizi, feminine/neuter plural deltoide)

1. deltoid

Declension

Declension of deltoid

		singular				plural
		masculine	neuter	feminine		masculine	neuter	feminine
nominative- accusative	indefinite	deltoid		deltoidă		deltoizi	deltoide
	definite	deltoidul		deltoida		deltoizii	deltoidele
genitive- dative	indefinite	deltoid		deltoide		deltoizi	deltoide
	definite	deltoidului		deltoidei		deltoizilor	deltoidelor

Turkish

Etymology

Borrowed from French deltoïde.

Pronunciation

• IPA^(key): [deltojid]

Noun

deltoid (definite accusative deltoidi, plural deltoidler)

1. (geometry) kite

Declension

Declension of deltoid

	singular	plural
nominative	deltoid	deltoidler
definite accusative	deltoidi	deltoidleri
dative	deltoide	deltoidlere
locative	deltoidde	deltoidlerde
ablative	deltoidden	deltoidlerden
genitive	deltoidin	deltoidlerin