primer meaning
EN
[ˈpɹaɪ.mə(ɹ)] [ˈpɹɪ.mɚ] [ˈpɹaɪmɚ] [-aɪmə(ɹ)] [-ɪmə(ɹ)] 
UK US WPrimer
- Primer may refer to:
- Primer (cosmetics), a cream or lotion applied before another cosmetic to improve coverage and lengthen the amount of time the cosmetic lasts on the face
- Primer (firearm), firearm powder charge ignition mechanisms
- Centerfire ammunition, Boxer or Berdan centerfire primers used in modern centerfire cartridges
- Percussion cap, gunpowder ignition device for 19th century muzzle-loading firearms and modern replicas
- Primer (gasoline engine), a device on some petrol engines used to prime the engine with gasoline before starting it
FR primer 
- NounPLprimersSUF-er
- (historical, Catholic ecclesiastical) A prayer or devotional book intended for laity, initially an abridgment of the breviary and manual including the hours of the Virgin Mary, 15 gradual and 7 penitential psalms, the litany, the placebo and dirige forming the office of the dead, and the commendations.
- (historical, Protestant ecclesiastical) Similar works issued in England for private prayer in accordance with the Book of Common Prayer.
- A children's book intended to teach literacy: how to read, write, and spell.
- 1545, The A.B.C. Primers
- An introductory text on any subject, particularly basic concepts.
- (New Zealand) An elementary school class; an elementary school student.
- Any substance or device used to ignite a fire, (chiefly) any priming wire, blasting cap, or other device used to ignite gunpowder or other explosive.
- (obsolete, rare) A person who primes explosives.
- Any substance used to prime wood, metal, etc.
- A layer of such a substance.
- (obsolete, rare) A person who primes wood, metal, etc.
- (biology) A molecule which initiates the synthesis of an enzyme, (chiefly) a single-stranded nucleic acid molecule which initiates DNA replication.
- (medicine, zoology) A pheromone which interacts first with the endocrine system.
- A device used to prime an internal combustion engine with gasoline, (chiefly) in airplanes.
- A person who prunes trees.
- (historical, Catholic ecclesiastical) A prayer or devotional book intended for laity, initially an abridgment of the breviary and manual including the hours of the Virgin Mary, 15 gradual and 7 penitential psalms, the litany, the placebo and dirige forming the office of the dead, and the commendations.
- Adjective
- More Examples
- Used in the Middle of Sentence
- After selection for apramycin- and thiostrepton- resistance, six conjugants were picked out randomly and verified by PCR with a primer set as med12-qc1/med12-qc2 (Table 1 ).
- This complex unwinds duplex DNA while synthesizing pentaribonucleotide RNA primers for use by the lagging strand polymerase (gp43).
- We also performed PCR to amplify a portion of D loop using the same primers (H16498 and L15910; [26 ]) and thermoprofile used by Bozarth et al.
- Used in the Middle of Sentence
Definition of primer in English Dictionary
- Part-of-Speech Hierarchy
- Adjectives
- Uncomparable adjectives
- Uncomparable adjectives
- Morphemes
- Suffixes
- Words by suffix
- Words suffixed with -er
- Words suffixed with -er
- Words by suffix
- Suffixes
- Nouns
- Countable nouns
- Agent nouns
- Countable nouns
- Adjectives
Source: Wiktionary
Grammatically, this word "primer" is an adjective, more specifically, an uncomparable adjective. It's also a morpheme, more specifically, a suffixe. It's also a noun, more specifically, a countable noun and an agent noun.