A weather system that was a tropical cyclone but has moved out of the tropics, typically losing the eyewall and symmetrical cloud pattern but still having considerable potential for severe weather.

(geography) The parallel of latitude 23°30′south of the equator, marking the southern boundary of the tropics; the sun is directly overhead at the December solstice.

(biochemistry) A hormone that regulates the activity of the endocrine glands

(geography) The parallel of latitude 23°30′north of the equator, marking the northern boundary of the tropics; the sun is directly overhead at the June solstice.

(organic chemistry) 3-hydroxy-2-phenylpropanoic acid, a laboratory reagent used in the chemical synthesis of atropine and hyoscyamine.

plural of sub-tropical

plural of tropic hormone

Alternative form of dualtropic.

Alternative spelling of tropicália, the tropicalismo movement in Brazilian art and music

plural of tropicalista