A weak aurora above the tropics

plural of tropical storm

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

plural of tropical almond

The Indian almond, Terminalia catappa.

Alternative form of dualtropic.

(music) A genre of popular music with elements of rock, reggae, country, folk, calypso, zydeco, and pop music, with themes and musical compositions inspired by a tropical island style.

(astrology) A form of astrology that measures the position of the sun relative to the vernal equinox. This does not compensate for the precession of Earth's axis, so that the zodiac signs move around the sky relative to the vernal equinox by about one sign every 2150 years.

plural of tropical fish

The average time for the Moon to pass twice through the same equinox point of the sky (27.32158 days).