BLOODSHOT
bloodshot
(adjective) (of an eye) reddened as a result of locally congested blood vessels; inflamed; “bloodshot eyes”
Source: WordNet® 3.1
Etymology
Adjective
bloodshot (comparative more bloodshot, superlative most bloodshot)
(of the eyes) reddened and inflamed because of congested blood vessels
Source: Wiktionary
Blood"shot` (, a. Etym: [Blood + shot, p. p. of shoot to variegate.]
Definition: Red and inflamed; suffused with blood, or having the vessels
turgid with blood, as when the conjunctiva is inflamed or irritated.
His eyes were bloodshot, . . . and his hair disheveled. Dickens.
Source: Webster’s Unabridged Dictionary 1913 Edition