345. Rain

See also 27. ATMOSPHERE ; 85. CLIMATE ; 87. CLOUDS ; 246. LIGHTNING ; 375. SNOW ; 394. THUNDER ; 414. WATER ; 417. WEATHER .

hyetography

the study of the geographical distribution of rainfall by annual totals. — hyetographic, hyetographical, adj.

hyetology

Rare. the branch of meteorology that studies rainfall. — hyetologist, n. — hyetological, adj.

ombrology

the branch of meteorology that studies rain. — ombrological, n.

ombrophobia

an abnormal fear of rain.

pluviography

the branch of meteorology that automatically measures rainfall and snowfall. — pluviographic, pluviographical, adj.

pluviometry

the branch of meteorology concerned with the measurement of rainfall. — pluviometric, pluviometrical, adj.

pluvioscope

an instrument for measuring rainfall; a rain gauge.

pluviosity

raininess. — pluvious, adj.

udometry

the measurement of rainfall with any of various types of rain gauges. — udometric, adj.

udomograph

a self-registering rain gauge.