A subsurface zone of soil or rock in which all pores and interstices are filled with fluid. Because of the weight of the overlying groundwater, the fluid pressure in the phreatic zone is greater than the atmospheric pressure. Compare vadose zone.
[free-at-uh-fahyt] /friˈæt əˌfaɪt/ noun 1. a long-rooted plant that absorbs its water from the water table or the soil above it. /frɪˈætəfaɪt/ noun 1. a plant having very long roots that reach down to the water table or the layer above it phreatophyte (frē-āt’ə-fīt’) A deep-rooted plant that obtains water from a permanent ground supply […]
1. variant of before a vowel: phrenic. 1. . 2. . phren- pref. Variant of phreno-. phrenology
phrenalgia phre·nal·gi·a (frə-nāl’jē-ə, -jə) n.
phrenemphraxis phren·em·phrax·is (frěn’ěm-frāk’sĭs) n. See phreniclasia.