WordNet

of critical importance and consequence; "an acute (or critical) lack of research funds"
having or demonstrating ability to recognize or draw fine distinctions; "an acute observer of politics and politicians"; "incisive comments"; "icy knifelike reasoning"; "as sharp and incisive as the stroke of a fang"; "penetrating insight"; "frequent penetrative observations" (同)discriminating, incisive, keen, knifelike, penetrating, penetrative, piercing, sharp
extremely sharp or intense; "acute pain"; "felt acute annoyance"; "intense itching and burning" (同)intense
having or experiencing a rapid onset and short but severe course; "acute appendicitis"; "the acute phase of the illness"; "acute patients"
of an angle; less than 90 degrees
pertaining to respiration; "respiratory assistance"
a breathing device for administering long-term artificial respiration (同)inhalator
abnormally high alkalinity (low hydrogen-ion concentration) of the blood and other body tissues

PrepTutorEJDIC

(先の)『鋭い』,とがった / (痛み・感情などが)『激しい』,強い / (知力・感覚などが)『鋭い』,鋭敏な / (事態が)重大な / (病気が)急性の / (音が)高い,鋭い / 鋭角の
呼吸の,呼吸作用の,呼吸のための
《米》人工呼吸装置 / (一般に)マスク;防毒マスク

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Acute exposure to high environmental ammonia (HEA) triggers the emersion response in the green shore crab.

Zimmer AM1, Wood CM2.
Comparative biochemistry and physiology. Part A, Molecular & integrative physiology.Comp Biochem Physiol A Mol Integr Physiol.2017 Feb;204:65-75. doi: 10.1016/j.cbpa.2016.11.008. Epub 2016 Nov 15.
The physiological effects of high environmental ammonia (HEA) exposure have been well documented in many aquatic species. In particular, it has recently been demonstrated that exposure to ammonia in fish leads to a similar hyperventilatory response as observed during exposure to hypoxia. In littoral
PMID 27863254

Hyperventilation with Maintenance of Isocapnia. An "Old New" Method in Carbon Monoxide Intoxication.

Sein Anand J1,2, Schetz D1,2, Waldman W1,2, Wiśniewski M1,2.
PloS one.PLoS One.2017 Jan 20;12(1):e0170621. doi: 10.1371/journal.pone.0170621. eCollection 2017.
INTRODUCTION: Exposure to carbon monoxide (CO) is among the most common causes of acute and chronic poisonings worldwide. The crucial point of treatment of such acute poisonings is to eliminate CO from the body as fast as possible. There are currently two approaches to the management of the CO intox
PMID 28107437