Updated on March 16, 2024
| brain | The blood-brain barrier protects the brain from harmful substances in the blood. |
| potential | The potential barrier was too high for the electrons to tunnel through. |
| major | |
| effective | The effective barrier stopped the spread of the disease. |
| physical | The fence acted as a physical barrier preventing entry into the restricted area. |
| natural | The mountains acted as a natural barrier protecting the valley from invaders. |
| formidable | The formidable barrier of the mountain pass was a daunting challenge for the travelers. |
| protective | The skin is a protective barrier against infection. |
| placental | The placental barrier protects the developing fetus from harmful substances in the mother's blood. |
| insurmountable | The seemingly insurmountable barrier of prejudice held her back for years. |
| impassable | The impassable barrier blocked our path. |
| significant | She faced a significant barrier to her education because she couldn't afford to buy a computer. |
| sound | The pilot broke the sound barrier during the test flight. |
| impenetrable | The impenetrable barrier of silence prevented any communication between them. |
| insuperable |
| only | The only barrier to our success is our lack of determination. |
| invisible | Her ability to bypass society's invisible barrier was almost magical. |
| mucosal | The integrity of the mucosal barrier relies on the presence of certain bacteria. |
| psychological | The athlete's psychological barrier prevented him from achieving his full potential. |
| serious | It is a serious barrier to entering the workforce. |
| strong | The strong barrier prevented any further advancement. |
| bloodbrain | The bloodbrain barrier is a protective barrier between the brain and the rest of the body. |
| greatest | The greatest barrier to success is the fear of failure. |
| artificial | The ocean was crystal clear and a relatively short distance from the sandy beach, but an artificial barrier of stagnant water, detritus, and algae blocked any shortcut. |
| mechanical | The mechanical barrier prevented the spread of infection. |
| additional | The additional barrier to entry discouraged entrepreneurs from starting new businesses. |
| effectual | The effectual barriers around the castle kept out all invaders. |
| solid | The solid barrier prevented the car from passing through. |
| absolute | The absolute barrier between dreams and reality sometimes seems insurmountable. |
| thin | There was only a thin barrier separating the two opposing forces. |
| epithelial | The epithelial barrier is the outermost layer of the skin and serves as a protective barrier against pathogens. |
| impermeable | The thick plastic sheet acted as an impermeable barrier preventing water from penetrating the soil. |
| cultural | Despite the cultural barrier they were able to communicate effectively. |
| outer | The outer barrier of the reef is close to the continental shelf. |
| aqueous | The skin's aqueous barrier is made up of water and lipids that help to protect the body from dehydration. |
| defensive | They built a defensive barrier around the castle to ward off potential attackers. |
| schottky | The schottky barrier is a potential energy barrier that exists at a metal-semiconductor junction. |
| biggest | The biggest barrier to communication is the assumption that it has taken place. |
| thermal | The thermal barrier coating on the spacecraft protected it from the extreme heat of re-entry. |
| wooden | The wooden barrier blocked the path of the intruders. |
| substantial | The building's lack of a wheelchair ramp presented a substantial barrier to accessibility. |
| testis | |
| retinal | The retinal barrier is a complex structure that protects the retina from harmful substances. |
| principal | The principal barrier to entry in this market is the high cost of production. |
| gastric | The gastric barrier is the first line of defense against ingested pathogens. |
| blood | The particles are too large to pass the blood barrier |
| double | The double barrier was a formidable obstacle. |
| permanent | The permanent barrier protected the castle from invaders. |
| continuous | The continuous barrier of mountains prevented the soldiers from advancing. |
| powerful | The force field is a powerful barrier |
| intestinal | The research team is looking into how the intestinal barrier protects against pathogens. |
| rocky | The rocky barrier stood tall and unyielding, a formidable obstacle to progress. |
| epidermal | The epidermal barrier is the outermost layer of the skin and it helps to protect the body from the environment. |
| racial | |
| endothelial | The endothelial barrier is a continuous monolayer of endothelial cells that lines the blood vessels. |
| selective | The selective barrier of the cell membrane regulates the movement of molecules into and out of the cell. |
| impregnable | The impregnable barrier of suspicion made communication nearly impossible. |
| huge | The huge barrier hindered the progress of the group. |
| concrete | The concrete barrier protected the pedestrians from the speeding cars. |
| efficient | The efficient barrier resisted the destructive force of the hurricane. |
| permeable | The permeable barrier allowed water to pass through. |
| rigid | The rigid barrier prevented any further progress. |
| temporary | The temporary barrier had been erected to prevent further damage to the property. |
| linguistic | Communication was difficult due to a linguistic barrier |
| difficult | The difficult barrier stood as an obstacle in their path. |
| partial | The partial barrier blocked the view of the lake. |
| intact | The intact barrier of skin protects the body from harmful substances |
Click on a letter to browse words starting with that letter