From the book
A Chymical Dictionary
Gerhard Dorn and John French · Diotimos Editions · 2026
Browse this book’s lexicon →Orientation
At a Glance
- The wordA name for milk’s cream.
- In the bookCompare Lac Virginis, whose milky name is assigned to mercurial water.
- A place to readThe historical definition below, 1650 dictionary, unnumbered definition page 30; facsimile PDF page 358.
Historical definition
Lustrum is the cream of milk.
Meaning
The dictionary identifies the particular portion of milk intended. It does not use the headword here for a span of years or a ceremonial act, meanings that a reader might bring from another context. The material equivalent is the whole local explanation.
Use in the book
Compare Lac Virginis, whose milky name is assigned to mercurial water. One entry actually concerns a dairy substance; the other employs milk-language for a different material. Similar naming does not establish a shared source.
Places to read
- LustrumRead the complete historical definition and its commentary.
- Lac VirginisVirgin’s milk as a name for mercurial water.
Source note
Historical source. 1650 dictionary, unnumbered definition page 30; facsimile PDF page 358 — Facsimile
Sources. A Chymical Dictionary 1650, 1650 dictionary, facsimile PDF page 358, Lustrum