The discrepancy between two kinds of solar time: the apparent solar time, which directly tracks the motion of the Sun, and mean solar time, which tracks a theoretical mean Sun with noons 24 hours...

Not lugubrious.

(medicine, anatomy) A congenital ear condition which often presents as a thickening of the helix at the junction of the upper and middle thirds.

Their Tibeto-Burman language, which has northern and southern dialects.