ir'radiator

World English Dictionary
irradiate (ɪˈreɪdɪˌeɪt) [Click for IPA pronunciation guide]
 
vb
1.  (tr) physics to subject to or treat with light or other electromagnetic radiation or with beams of particles
2.  (tr) to expose (food) to electromagnetic radiation to kill bacteria and retard deterioration
3.  (tr) to make clear or bright intellectually or spiritually; illumine
4.  a less common word for radiate
5.  obsolete (intr) to become radiant
 
ir'radiative
 
adj
 
ir'radiator
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Ir'radiator is always a great word to know.
So is zedonk. Does it mean:
the offspring of a zebra and a donkey.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
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