Ca
calcium.
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Ca
1 AmericanSymbol, Chemistry.
CA
2
American
ca'
3
American
[kah, kaw]
/ kɑ, kɔ /
verb (used with or without object)
Scot.
ca-
4
American
ca.
5
American
abbreviation
-
cathode.
-
centiare.
-
Also ca (with a year) about.
ca. 476 b.c.
C/A
6
American
Or
c/a
-
capital account.
-
cash account.
-
credit account.
-
current account.
C.A.
7
American
abbreviation
-
Central America.
-
Accounting. chief accountant.
-
Coast Artillery.
-
commercial agent.
-
consular agent.
-
controller of accounts.
CA
1
British
abbreviation
-
California
-
Central America
-
chartered accountant
-
chief accountant
-
consular agent
-
(in Britain) Consumers' Association
C/A
2
British
abbreviation
-
capital account
-
credit account
-
current account
Ca
3
British
symbol
ca
4
British
abbreviation
ca.
5
British
abbreviation
Etymology
Origin of ca'3
Variant of call
Origin of ca.5
ca. ( def. 3 ) < Latin circā
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Using specially designed nucleic acid probes, the team produced microscopic images showing intron RNA in living cells of Ca.
From Science Daily ● Aug. 5, 2026
He recalled when he was 15, growing up in the Vietnamese city of Ca Mau, he overheard his father’s friend ask for a loan to buy a car.
From Los Angeles Times ● Jul. 10, 2026
Cardinal Luis Antonio Tagle presided as papal envoy over a special mass in a church in Ca Mau for Father Francis Xavier Truong Buu Diep, a priest killed while protecting parishioners in 1946.
From Barron's ● Jul. 2, 2026
She was treated on the slope for a lengthy period before being airlifted off the piste to Ca Foncello hospital in Treviso, where she underwent surgery on a fractured left leg.
From BBC ● Feb. 9, 2026
Another popular one was: "Ca, shakum, poo kai Ca, shakum poo kai Ca, shakum tee kai Ca, shakum tee kai," these lines being repeated like the others over and over and over again.
From A Canyon Voyage The Narrative of the Second Powell Expedition down the Green-Colorado River from Wyoming, and the Explorations on Land, in the Years 1871 and 1872 by Frederick Samuel Dellenbaugh
The study appears in CA: A Cancer Journal for Clinicians, the flagship journal of ACS, and is also available on cancer.org.
From Science Daily ● Sep. 7, 2026
The company is based in Hawthorne, CA and has subsidiaries in Luxembourg and the United States.
From MarketWatch ● Jul. 22, 2026
“Is CA cheating to get Spencer Pratt out?”
From Los Angeles Times ● Jun. 16, 2026
In an April 29 press release, Markon Cooperative, a farm-to-table produce cooperative, noted that cauliflower supplies from the Salinas Valley and Santa Maria, CA, are extremely limited.
From Salon ● May 27, 2026
Then I took the envelope from my dresser, postmarked Oakland, CA.
From "P.S. Be Eleven" by Rita Williams-Garcia
They were going to take the bit bonnie bairn from her—and him every night, as like as not, having a black life-and-death-fight wi' what they ca' croup.
From A Reconstructed Marriage by Amelia Edith Huddleston Barr
He’s only an exciseman, if you come dawn to facts, but they ca’ him a Supervisor.
From All the Days of My Life: An Autobiography The Red Leaves of a Human Heart by Amelia Edith Huddleston Barr
You will ca' at my office on Wednesday; and, after that, I'll tak care o' you.
From Wilson's Tales of the Borders and of Scotland Volume 21 by Alexander Leighton
"Av you ca' it walking," said Sandy, grimly; "but it's mair, far mair, like the step o' a goose than a Christian man."
From The Knight Of Gwynne, Vol. I (of II) by Charles James Lever
It’s hers while she’s in it, and so it’s yours, to say nothing o’ George there, who surely is your friend and brother, whatever ye may ca’ me.”
From The Twa Miss Dawsons by Margaret M. (Margaret Murray) Robertson
She wants me to be indebted to her for my education, for my ca- reer, for my house.
From "The Queen of Water" by Laura Resau
Root grow thou long-er heart be thou strong-er; Let the sun bless me, soft-ly ca- ress me; Let rain-drops pat-ter, wind, my leaves scat-ter.
From The Story Hour by Nora Archibald Smith
It is the illumination of 85:3 the spiritual understanding which demonstrates the ca- pacity of Soul, not of material sense.
From Science and Health, with Key to the Scriptures by Mary Baker Eddy
The Wolfe deuoureth and ea- teth of his praie all in feare, and therefore oftentymes he ca- steth his looke, to be safe from perill and daunger.
From A booke called the Foundacion of Rhetorike because all other partes of Rhetorike are grounded thereupon, euery parte sette forthe in an Oracion vpon questions, verie profitable to bee knowen and redde by Richard Rainolde
The human genome contains ca. 20,000 genes that are used for the construction of proteins.
From Science Daily ● Dec. 8, 2023
Described as “Garcia’s personal briefcase, with handwritten lyrics, drawings, letters, and ephemera, ca. 1977-1979,” the assorted paperwork offers a look at the musician’s daily life on the road.
From Los Angeles Times ● Oct. 7, 2021
In the 5th and 4th century the number of "eligible voters" was perhaps not higher than 10% out of a population of ca. 250,000.
From Economist ● Nov. 27, 2012
Part of the challenge was to create an interactive version of a city--in this case, Yokosuka, Japan, ca. 1986--in which you can knock on virtually every door on every street.
From Time Magazine Archive
Vill you take my check for de ca. sa.,
From The Memories of Fifty Years Containing Brief Biographical Notices of Distinguished Americans, and Anecdotes of Remarkable Men; Interspersed with Scenes and Incidents Occurring during a Long Life of Observation Chiefly Spent in the Southwest by William Henry Sparks
Norma Buster is the chief of staff at C.A.
From Salon ● Aug. 17, 2026
A friend of Williams, identified only as C.A., recounted that Henley arrived at the Airbnb about 2 a.m. on Jan. 24.
From Los Angeles Times ● Mar. 19, 2025
“We were sitting around after dinner and wrote half the song,” she told the writer C.A.
From New York Times ● Nov. 22, 2024
The practice of sending reporters out as a “one-man band” is not new, but it is more widespread today, said C.A.
From Seattle Times ● Jan. 20, 2022
Mr. Murdock withdrew in 1881 and established the C.A.
From All About Coffee by William H. (William Harrison) Ukers
For Mr. McWilliams, next to nothing is irrelevant to the story of man and money, including the first bicycle craze, ca.
From The Wall Street Journal ● Dec. 12, 2025
They recorded substantially higher levels of pollutants in the kitchen for well over an hour after the food had been cooked despite the cooking process only taking ca.
From Science Daily ● Nov. 26, 2024
But instead of giving her a ticket, he cleaned off her ca, she said.
From Seattle Times ● Mar. 16, 2023
Dishes including this one, vit ca ri, make chowhounds hopeful.
From Washington Post ● Jan. 6, 2023
“Et ton amie, ca va!” she asked casually—How’s your friend?
From "Code Name Verity" by Elizabeth Wein
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
