Meander, extreme U-bend in the course of a stream, usually occurring in a series.
Protamine, simple alkaline protein usually occurring in combination with a nucleic acid as a nucleoprotein.
It's essentially an extreme manifestation of dry skin, usually occurring on the lower legs.
Usually occurring in the most unfortunate countries, they degrade institutions, polarize politics and impede the continuity necessary for growth.
Usually occurring on the skin, early detection and diagnosis is strongly related to survival rates.
The state experiences some 10 tornadoes a year, usually occurring during the spring.
Typically, treatment consists of 10 to 20 sessions, usually occurring weekly.
Crocket, in architecture, a small, independent, sharply projecting medieval ornament, usually occurring in rows, and decorated with foliage.
Spot-crowned Barbets inhabit primary forest at low and mid elevations, reaching to 1200 m but usually occurring lower.
Plagioclase, any member of the series of abundant feldspar minerals usually occurring as light-coloured, glassy, transparent to translucent, brittle crystals.
Histone, any of a group of simple alkaline proteins usually occurring in cell nuclei, combined ionically with DNA (deoxyribonucleic acid) to form nucleoproteins.
