Read along with the three podcasts, or open the full dictionary entry for Porous for the definition, Arabic meaning, synonyms and example sentences.
Narrator: Today's word is "Porous" — adjective, pronounced /ˈpɔːrəs/, with the stress on "por".
Narrator: Porous means having small holes that allow liquids or gases to pass through.
Narrator: In plain English, a porous material soaks up water because it is full of tiny holes.
Narrator: It comes from the Latin porus, meaning a pore, from the Greek poros, a passage.
Narrator: "A porous rock" describes a stone, like sandstone or pumice, that lets water seep through its tiny holes.
Narrator: It differs from permeable because porous refers to the holes themselves, whereas permeable refers to the ability to let things pass through.
Narrator: "Porous borders" is a figurative phrase for frontiers that are easy to cross illegally or without checks.
Narrator: Geology, materials science, medicine, filtration and border security all rely on the word porous.
Narrator: So remember: porous means full of tiny holes, from the Latin for a pore.
Speaker A: The news said the border is porous. Does that mean it's full of holes?
Speaker B: Figuratively, yes! POROUS comes from the Latin porus, a pore, and literally means full of tiny holes, so a porous border lets people slip through unchecked.
Speaker A: And a porous rock soaks up water?
Speaker B: Exactly — like a sponge!
Speaker A: Example sentences?
Speaker B: "The rock is porous and holds water"; "porous borders allow smuggling"; "the filter is porous" — geology, security, and engineering.
Speaker A: Common mistakes?
Speaker B: Do not use porous for a solid, sealed material, because the word requires holes; and the stress is on por, not ou.
Speaker A: Close relatives?
Speaker B: "Permeable" the pass-through cousin, "spongy" the soft twin, "holey" the everyday alternative. The porous keeps its tiny-hole, soaking charm!
Speaker B: Let's use "porous" in AI prompts — useful for materials science tools and border security reports.
Speaker A: So a prompt could describe a porous material?
Speaker B: Right. For a materials app, you'd write:
Prompt: Compare three porous rocks used in building, naming how each handles water and one drawback of using it outdoors.
Speaker A: How about a security report?
Speaker B: Ask the model to summarise a risk:
Prompt: Summarise in three sentences why a porous border is hard to police, naming one technological aid and one human cost.
Speaker A: Could it help with a filtration guide?
Speaker B: Yes, you can explain a filter:
Prompt: Explain in two sentences how a porous ceramic filter cleans drinking water, naming the pore size and one thing it cannot remove.
Speaker A: One more?
Speaker B: For a skincare app, try this:
Prompt: Explain in two sentences what porous skin means in skincare and suggest one habit that can help reduce the appearance of pores.
Porous — meaning in Arabic & definition More P courses GL Dictionary