Skip to main content
primary

primary

1 8.0
A large object like a star that smaller objects move around
  • noun
  • /ˈpraɪˌmɛri/
  • Specialized
translation icon : estrella primaria
  • Maybe they would never find the primary, I was told.
  • primary and secondary star
  • magnitude of the primary

Examples

  • "Perhaps you recall several years ago the collision of Comet Shoemaker-Levy with our primary?"

    Fiction book (2001)
  • It was the unknown primary that sent chills through me whenever I read the report.

    Fiction book (2001)
  • One of the stars, the primary, is blue and much brighter than its companion.

    Academic text (2000)
  • So from a single primary cosmic ray comes a shower of particles streaming towards the Earth.

  • So what you're going to get is observationally planets that are relatively close to their primary stars.

  • I knew the pathology report by heart: papillary carcinoma with an unknown primary.

    Fiction book (2001)
  • These binaries contain a faint, orange-red, spectral class F to K, giant or sub-giant star, called the secondary, and a luminous, blue, spectral class B to A, main-sequence companion, called the primary.

    Academic text (2000)
  • The primary star in this system is surrounded by several smaller planets orbiting around it.

  • The researchers focused on the primary to understand the dynamics of its surrounding planets.

  • Astronomers observed the primary, noting its brightness compared to the dimmer stars nearby.

Synonyms

celestial body
vsprimary
  • Specialized
5 4.4

A natural object in space like a star or planet that you can see in the sky

is a central object, often a star, that smaller objects revolve around

Compounds

47 3.0

Basic medical help people get first from a family doctor

A school for children aged five to eleven where they learn basic subjects

A doctor you see first for health problems who gives general care and arranges specialist help

12 3.2

An early election where party voters choose candidates for the general election

5 2.2

A basic color like red, blue, or yellow that you mix to make other colors

open primary
  • Literature
5 6.4

An early election before the main vote where any registered voter can vote for candidates of only one party

A doctor or nurse you see first for health problems and regular check-ups

primary health care
  • Specialized
2 3.0

Basic health care you get first from a doctor or community clinic for everyday needs

2 7.2

An election to choose a party candidate in which only registered members of the party can vote

primary cell
  • Specialized
1 5.6

A small battery that you throw away after one use

primary feather
  • Specialized
1 5.2

A long part of a bird's wing at the outer edge that helps the bird fly

A child's first tooth that falls out when an adult one grows

clown-car primary
  • Offensive
9.9

An election with too many messy candidates that makes it hard to pick one

A primary election where voters choose candidates instead of party officials

primary amenorrhea
  • Specialized
9.6

A girl who has not started her first period by the age of 18

5.3

A lung infection in children and young adults that causes high fever and cough

9.1

Military officers check soldiers' personal letters and messages for secret information

primary quill
  • Specialized
8.9

A long outer flight feather on a bird's wing that helps it fly

primary sex character
  • Specialized
8.8

Body parts used for having babies, like genitals, that show if someone is male or female

5.2

A body part you are born with that helps make babies, like genitals or ovaries

3.5

One of three main colors of light, like red, green or blue

primary coil
  • Specialized
6.2

A loop of wire where changing electric current makes a magnetic field that creates current in a nearby loop

One of the three basic paint colours red, blue and yellow used to make other colours

primary dentition
  • Specialized
4.4

The first set of baby teeth that children have

primary dysmenorrhea
  • Specialized
6.3

Painful cramps in the lower belly that happen during a normal period

A body part you are born with that is used to make babies, like genitals

7.5

A solid metal in which atoms of other elements mix evenly into its structure

One of three colors, magenta, cyan and yellow, used in printing to make many colors by removing light

primary syphilis
  • Specialized
5.8

The first stage of syphilis when a painless sore appears at the infection site

primary winding
  • Specialized
7.0

A coil that receives input electricity and causes a changing current in the secondary coil

Surface Forms

primary singular
primaries plural

Etymology

Primary comes from the Latin root primus meaning 'first' and is the same root as prime, so in astronomy a primary is the main or 'first' body that other objects go around.