acid
Of or pertaining to an acid; acidic.
Seen in the wild
The new protein shows a unique amino acid motif. This small change affects how the channel responds to light.
Triple-action hydration: Algologie 3-in-1 Universal Moisturising Fluid (75ml). Daily moisturiser, SOS spot treatment or 15-min mask — powered by Algo 4®, hyaluronic acid & salicornia. £19.95. Shop: wix.to/2Vbm7sI #Ski…
Biomimetic low-porosity framework membranes for efficient power generation and acid recycling from industrial wastewater http://pubs.rsc.org/en/Content/ArticleLanding/2026/MH/D6MH00269B
UFORB Though we were buying acid by the sheet back then…
My cat reacts like I've put acid on her.... And I feel so guilty for doing it!
Definitions
Of or pertaining to an acid; acidic.
“I’m late posting this here, but in honor of May the Fourth Be with You” here’s an interview of the queen, and my bipolar sister, Carrie Fisher #starwars #carriefisher #acid #drugs”
— Bluesky· May 2026“Honestly, that felt like a politically-motivated acid attack. But I made no mention of it to my therapist.”
— Bluesky· May 2026“H Acid Price Trend: A Simple Guide for Market Understanding Explore the H Acid Price Trend with simple insights, key drivers, and sourcing tips for manufacturers and procurement teams. Read more: www.price-watch.ai/h-acid-prices/”
— Bluesky· May 2026“Acid-base reactions and their consequences have been a disaster for the human race.”
— Bluesky· May 2026“To address the nNOS mislocalization and impaired NO signaling adding NO donors has been proposed as a therapeutic option. One way to do this is to use the amino acid L-Arginine, which can be used to produce NO from.”
— Bluesky· May 2026
Comments
Sour, sharp, or biting to the taste; tart; having the taste of vinegar.
His response was harsh and acid.
“The new protein shows a unique amino acid motif. This small change affects how the channel responds to light.”
— Bluesky· May 2026“Triple-action hydration: Algologie 3-in-1 Universal Moisturising Fluid (75ml). Daily moisturiser, SOS spot treatment or 15-min mask — powered by Algo 4®, hyaluronic acid & salicornia. £19.95. Shop: wix.to/2Vbm7sI #Skincare #Hydration #Algologie”
— Bluesky· May 2026“Biomimetic low-porosity framework membranes for efficient power generation and acid recycling from industrial wastewater http://pubs.rsc.org/en/Content/ArticleLanding/2026/MH/D6MH00269B”
— Bluesky· May 2026“UFORB Though we were buying acid by the sheet back then…”
— Bluesky· May 2026“My cat reacts like I've put acid on her.... And I feel so guilty for doing it!”
— Bluesky· May 2026
Comments
(figuratively) Sour-tempered.
"acid" means sour-tempered. It is one of many casual words teens pick up from friends, social media, music or sport, and on its own it carries no particular warning. If you hear your teen use it, it is fair to ask what they mean by it in their friend group, since meanings drift quickly. Asking out of curiosity rather than alarm tends to keep the conversation open and useful.
"acid" is informal English meaning sour-tempered. It is used widely across English varieties. A more formal or neutral equivalent would be something like "sour-tempered" expressed in standard vocabulary. A common mistake is to assume "acid" can replace its standard equivalent in every register; keep it for spoken or casual situations and use the formal form in writing. If you are a B2 or C1 learner, it is useful to recognise this word when you hear or read it, but think carefully about whether the situation really calls for it before using it yourself.
“This has the same cadence as bill hicks’ bit about family acid trips It’s one of his only two good bits worth looking up”
— Bluesky· May 2026“Jaggedly Hover Relationship Arm: Buy a percussion. Get the cowbell out the loft. Redefine funeral doom acid trance.”
— Bluesky· May 2026“I do it this way too! one at a time!? I ain't got all day holy mother!? I get serious nausea and acid reflux from it tho. but I found this Amish solution that helps with the acid reflux 100% if you're suffering from that at all I can share a link?”
— Bluesky· May 2026“PPAR-α agonist pirinixic acid alleviates periodontitis-induced AD-like pathology via suppression of the IRF7-IFN-β-IFITM3 axis in glial cells #NeuroDegeneration 🧪🧠 https://www.researchsquare.com/article/rs-9421608/latest”
— Bluesky· May 2026“ao i guess the acid attack bit isn't actually in the joke? i must be reading phantom words or something, right”
— Bluesky· May 2026
Comments
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