country code top-level domain; ccTLD
Technical computing term for two-letter country-specific top-level domains like .jp or .uk.
Japan's country code top-level domain is '.jp'.
Standard kanji-katakana compound spelling.
Spelling with interpuncts for clarity.
Compound of 国別 (country-specific), コード (code), and トップレベルドメイン (top-level domain), a direct calque from English.