different between emaciation vs syntexis

English

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

emaciation (countable and uncountable, plural emaciations)

The act of making very lean.
The state of being emaciated or reduced to excessive leanness; an excessively lean condition.

From New Latin, from Ancient Greek ???????? (súnt?xis, “a melting”)

syntexis (uncountable)

(geology) A change in the structure of magma by melting or the assimilation of a different type of rock.
- 1857, in the Geological Magazine, volume 85, page 355:
  [...] is immaterial whether this magma is derived from a distinct earth shell, or is produced by syntexis between the sima and the sialic rocks.
(medicine) emaciation or wasting away
- 1885, Dujardin-Beaumetz, Indications for Antithermic Medication, in the New York Medical Abstract, volume 5, page 443:
  The patient feels no longer the irritating surface heat which so fatigues him; the syntexis or colliquation is less; he sleeps better, and this antithermic medication does well with forced feeding, [...]

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