Synonym of retinoic acid

(biochemistry) Any of several closely related fat-soluble vitamins that are essential for normal vision; retinol.

(informal) To damage; to treat harshly; to produce ill effects in.

It is better to be patient than impatient.

Too much focus on one's career may lead to one being uninteresting company. / Too much hard work and not enough leisure time can be unhealthy.

(idiomatic) To encounter an unexpected problem or delay.

(slang) To be insane, irrational, or eccentric.

Initialism of British Central Africa., as overprinted on stamps of Rhodesia in 1891.

(UK, historical) Initialism of British Military Administration., used in the late 1940s as an overprint on certain stamps of Great Britain used in British offices in Eritrea and Tripolitania.

Abbreviation of German East Africa, found as an occupation overprint stamps of East Africa and Uganda in 1917 for the entire occupied territory, and Kenya and Uganda in 1921 for the part now in Tanzania.