diffuser

noun dif·fus·er \ di-ˈfyü-zər \

|Updated on: 2 Aug 2018

Definition of diffuser

1 : one that diffuses: such as

a : a device (such as a reflector) for distributing the light of a lamp evenly

b : a screen (as of cloth or frosted glass) for softening lighting (as in photography)

c : a device (such as slats at different angles) for deflecting air from an outlet in various directions

2 : a device for reducing the velocity and increasing the static pressure of a fluid passing through a system

Recent Examples of diffuser from the Web

Spray a bunch in and scrunch the hair with your hands or dry with a diffuser for lots of kinky fun curl.

— kaitlyn frey, PEOPLE.com, "Shop Every Beauty Product Drew Barrymore Swears By," 24 May 2018
In the process of turning the appliance off, some of the vapor from the diffuser must have sprayed onto my face.

— lauren smith, Good Housekeeping, "Woman Claims Her Face Was Severely Burned in Essential Oil Diffuser Accident," 17 Nov. 2017
The carbon continues with optional front fender vents, side strakes, a rear lip spoiler, and an aggressive rear diffuser.

— tony markovich, Car and Driver, "Cookin’ with Carbon: ABT Sportsline Unleashes 530-HP Audi RS5-R," 26 Jan. 2018
Some examples include depositing a check on your banking app, putting spare shoes by the door away, and filling up and flipping on that new aromatherapy diffuser.

— Southern Living, "The 60-Second Trick to Acing Your To-Do List," 26 June 2018
At this height the Senna’s double diffuser is fully entrained (higher downforce and less drag) due to a phenomenon pilots know as ground effects.

— dan neil, WSJ, "2019 McLaren Senna: A Pet Racecar for Billionaires," 31 May 2018
Set over medium-low heat to warm slowly (on a diffuser if using a cazuela), gradually raising the heat to medium-high until the oil is hot and the garlic starts to sizzle and just turns golden, about 3 minutes.

— debbi snook, cleveland.com, "Paula Wolfert's Sizzling Shrimp with Garlic and Pimenton (recipe)," 25 Apr. 2018
At the rear, a diffuser-like finisher is bracketed by those large oval tailpipes, and a small, gloss-black lip spoiler adorns the trunk lid.

— jim resnick, Ars Technica, "The 2018 Audi RS5: Effortless speed and a magic carpet ride," 7 Apr. 2018
Other styling changes include the appearance of a horizontal blade within the lower air intakes, slightly reworked taillamps, new chrome quad tailpipes, and a bolder-looking diffuser treatment below the bumper.

— steve siler, Car and Driver, "2019 Mercedes-AMG C63 Sedan, Coupe, and Cabriolet," 29 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diffuser.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.