a combining form meaning “cold,” used in the formation of compound words:
psychrometer.
Origin
combining form representing Greekpsȳchrós cold; akin to psȳ́chein to blow (see psykter)
British Dictionary definitions for psychro-
psychro-
combining form
1.
cold: psychrometer
Word Origin
from Greek psukhros
Word Origin and History for psychro-
word-forming element meaning "cold," from Latinized form of Greek psykhros "cold," from psykhrein "blow, make cool or cold," from the same root as psyche.