† calcescencen.
Etymology: < Latin calc- lime, after fluorescence; so called because typically exhibited in the lime-light.
Obsolete.
the world > matter > physics > electromagnetic radiation > heat > transmission of heat > [noun] > becoming luminous
1881 19 May 66/2 Akin gave the name of calcescence to the phenomenon of the change of non-luminous heat-rays into luminous ones (as in the lime-light), but the term has been superseded by Tyndall's term calorescence.
This entry has not yet been fully updated (first published 1888; most recently modified version published online March 2021).