- Today's Word
Permeate
PUR-mee-ayt
Definition
- (verb) To spread throughout or penetrate every part of something.
Example
The scent of freshly baked bread permeated the entire house, making everyone’s mouth water.
Fun Fact
Permeation is a fundamental concept in science, from how water seeps through soil to how ideas spread through culture. The term is often used metaphorically—love can permeate a story, tension can permeate a room, and innovation can permeate an industry. Interestingly, in physics and chemistry, permeability describes how easily substances (like gases or liquids) move through materials, which is why certain fabrics “breathe” better than others!
(adjective) Sharply sarcastic or cutting in a way that is meant to wound; also, capable of burning or corroding organic tissue through chemical action
Her caustic remarks during the meeting left everyone uncomfortable and the presenter visibly shaken.
Caustic comes from the Latin causticus, derived from the Greek kaustikos — from kaiein, meaning “to burn.” It entered English in the late 14th century first in its literal chemical sense, describing substances that burn or corrode on contact, before its meaning extended to describe the burning quality of sharp, cutting speech.