tidal air
 一次呼吸的空氣
 tidal air 名詞
 潮氣,潮流氣,呼吸氣
 Tid·al a. Of or pertaining to tides; caused by tides; having tides; periodically rising and falling, or following and ebbing; as, tidal waters.
 The tidal wave of deeper souls
 Into our inmost being rolls,
 And lifts us unawares
 Out of all meaner cares.   --Longfellow.
 Tidal air Physiol., the air which passes in and out of the lungs in ordinary breathing. It varies from twenty to thirty cubic inches.
 Tidal basin, a dock that is filled at the rising of the tide.
 Tidal wave. (a) See Tide wave, under Tide.  Cf. 4th Bore. (b) A vast, swift wave caused by an earthquake or some extraordinary combination of natural causes. It rises far above high-water mark and is often very destructive upon low-lying coasts.
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