Definition of pre-cool in English:

pre-cool

Line breaks: pre-cool
Pronunciation: /priːˈkuːl/

Entry from British & World English dictionary

verb

[with object]
Cool in advance: (as adjective pre-cooled) clean, pre-cooled glass slides

Definition of pre-cool in:

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Word of the day internecine
Pronunciation: ˌintərˈnesēn
adjective
destructive to both sides in a conflict