| CUITIKIN | • CUITIKIN n. (Scots) a gaiter, also COOTIKIN, CUTIKIN. |
| DAIQUIRI | • daiquiri n. A cocktail of rum, lemon or lime juice and sugar, sometimes with fruit added. • DAIQUIRI n. a cocktail, also DAQUIRI. |
| ILLINIUM | • illinium n. (Obsolete) A rejected name for promethium. • ILLINIUM n. a former name for the element promethium. |
| ILLIQUID | • illiquid adj. (Finance) Lacking liquidity; unable to be converted into cash. • ILLIQUID adj. of assets etc. not easily converted into cash. |
| INDICIUM | • indicium n. An indication; a sign. • INDICIUM n. (Latin) a distinctive mark, also INDICIA. |
| INIQUITY | • iniquity n. (Uncountable) Deviation from what is right; gross injustice, sin, wickedness. • iniquity n. (Countable) An act of great injustice or unfairness; a sinful or wicked act; an unconscionable deed. • INIQUITY n. a gross injustice. |
| IRIDIUMS | • iridiums n. Plural of iridium. • IRIDIUM n. a metallic element. |
| LINGUINI | • linguini n. Alternative spelling of linguine. • LINGUINI n. (Italian) a kind of pasta made in narrow strips, also LINGUINE. |
| LIXIVIUM | • lixivium n. A solution of alkaline salts extracted from wood ashes. • lixivium n. Any solution obtained by lixiviation. • LIXIVIUM n. (Latin) a solution of alkaline salts extracted from wood ashes; hence, any solution obtained by lixiviation. |
| OUISTITI | • ouistiti n. Alternative form of wistiti. • OUISTITI n. (French) a marmoset, also WISTITI. |
| SILICIUM | • silicium n. (Obsolete) The non-metallic chemical element silicon. • SILICIUM n. the original name of the element silicon. |
| SINUITIS | • sinuitis n. Alternative form of sinusitis. • SINUITIS n. inflammation of a sinus, also SINUSITIS. |
| UMBILICI | • umbilici n. Plural of umbilicus. • UMBILICUS n. (Latin) the navel. |