obstruction;  check;  hindrance;  prevention;  impediment;  interdiction
 to keep someone from doing;  to stop;  to prevent;  to check;  to hinder;  to obstruct
 morning sickness;  hyperemesis gravidarum
 precipice;  steep (e.g. mountain pass)
 depressed in spirits;  rejection;  disheartened;  lacking nerve
 to hinder the growth of (e.g. plants, someone);  to hamper the growth of
 loss of spirit;  dejection
 selective serotonin reuptake inhibitor;  SSRI
 demoralization;  collapse of morale;  one's morale being shaken
 justifiable cause for noncompliance with the law
 hyperemesis gravidarum;  HG;  severe morning sickness
 monoamine oxidase inhibitor;  MAO inhibitor;  MAOI
 battlefield air interdiction
 macrophage migration inhibitory factor;  MMIF
 carbonate dehydratase inhibitor