mindmap root((STRICT)) stricture 1、 A law or rule that limits or controls something; restriction.
2、 A strong criticism.
🌱There are severe legal strictures on the selling of marijuana in almost every state. 🌳Stricture has meant many things through the centuries, and its "restriction" meaning—probably the most common one today—is actually the most recent. High-school teachers often put strictures on texting during class. Cities concerned about their murder rate have slapped strictures on the possession of handguns. And the United Nations may vote to put strictures on arms sales to a country that keeps violating international treaties. With the meaning "strong criticism," stricture is slightly old-fashioned today, but it's still used by intellectuals. So, for example, an article may amount to a harsh stricture on the whole medical profession, or an art review may just express the critic's strictures on sentimental paintings of cute little houses with glowing windows. restrictive 1、 Serving or likely to keep within bounds.
2、 Serving or tending to place under limits as to use.
🌱The deed to the property had a restrictive covenant forbidding any development of the land for 50 years. 🌳Restrictive covenants （that is, agreements） in real-estate deeds were once used to forbid the buyer from ever selling the property to anyone of another race. These are now illegal, though other kinds of restrictive covenants are very common; in some neighborhoods, they may even tell you what colors you can't paint your house. In grammar, a restrictive clause is one that limits the meaning of something that comes before it. In the sentence "That's the professor who I'm trying to avoid," "who I'm trying to avoid" is a restrictive clause, since it's what identifies the professor. But in the sentence "That's my History professor, who I'm trying to avoid," the same clause is nonrestrictive, since the professor has already been identified as "my History professor." There should always be a comma before a nonrestrictive clause, but not before a restrictive clause. constrict 1、 To draw together or make narrow.
2、 To limit.
🌱She felt that small towns, where everyone seems to know every move you make and is just waiting to gossip about it, can constrict your life terribly. 🌳Arteries constricted by cholesterol slow the flow of blood, just as traffic arteries or highways constricted by accidents slow the flow of traffic. But constriction isn't always physical. Economic growth may be constricted by trade barriers. A narrow, constricted life may be the result of poverty or lack of opportunity. And an actress may feel constricted by a role she played as a child or by her TV character from years ago, which the public refuses to forget. vasoconstrictor Something such as a nerve fiber or a drug that narrows a blood vessel.
🌱For operations like this, my dentist likes to use a vasoconstrictor to keep bleeding to a minimum. 🌳Our blood vessels are constantly narrowing and widening in response to our activity or our environment, constricting in order to retain body heat and widening to get rid of excess heat. So when we're hot our skin flushes, and when we're very cold we become pale. Since the width of the blood vessels affects blood pressure, vasoconstrictors are prescribed to treat low blood pressure. Vasoconstrictors include antihistamines and amphetamines, as well as nicotine and caffeine; we commonly buy them for our runny noses and bloodshot eyes as well. The opposite of vasoconstrictors are vasodilators, which are commonly used to treat high blood pressure.