Definify.com
Webster 1913 Edition
Deltidium
‖
Del-tid′i-um
,Noun.
[NL., fr. Gr.
δέλτα
, the letter Δ.] (Zool.)
The triangular space under the beak of many brachiopod shells.
Definition 2025
deltidium
deltidium
English
Noun
deltidium (plural deltidiums or deltidia)
- (conchology) The triangular space under the beak of many brachiopod shells. [1851]
Related terms
Latin
Etymology
The Latinisation of *deltidion, formed in Latin from Ancient Greek elements: δέλτα (délta) + -ίδιον (-ídion) = literally “little delta”. Compare the Byzantine Greek δελτίδιον (deltídion).
Pronunciation
- (Classical) IPA(key): /delˈti.di.um/, [dɛɫˈtɪ.di.ũ]
Noun
deltidium n (genitive deltidiī); second declension
- (New Latin, conchology) deltidium [≤1836]
Declension
Second declension.
| Case | Singular | Plural |
|---|---|---|
| nominative | deltidium | deltidia |
| genitive | deltidiī | deltidiōrum |
| dative | deltidiō | deltidiīs |
| accusative | deltidium | deltidia |
| ablative | deltidiō | deltidiīs |
| vocative | deltidium | deltidia |
Descendants
- English: deltidium