| Part of Speech | Definition | |
| Noun | 1. A name formerly given to certain Silurian brachiopod shells of the genus Spirifer.[Websters]. | |
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Date "DELTHYRIS" was first used in popular English literature: sometime before 1914. (references) |
| Etymology:Delthyris \Del*thy"ris\, noun. [New Latin expression, from the Greek expression de`lta the name of the letter [Delta] thy`ra door.]. (references) |
Common Expressions: DELTHYRIS
| Expressions | Definition | ||
| Delthyris limestone | (Geol.), one of the divisions of the Upper Silurian rocks in New York. Source: Webster's Revised Unabridged Dictionary. | ||
Source: compiled by the editor from various references; see credits. | Top | ||
