pharmacodynamics

noun

"pharmacodynamics" is a 16-letter English headword indexed on PlainSpell.

The verdict

“pharmacodynamics” is uncommon English (frequency #98,564 among 4,417 “P” headwords), classed as a noun. The kind of spelling people second-guess.

#98,564
frequency rank, English
4,417
“P” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The branch of pharmacology that studies the effects and modes of action of drugs upon the body.

Corpus desk

Index EN-pharmacodynamics · pharmacodynamics · English

pharmacodynamics · rank #98,564 · 0 variants · 0 confusables

  • FREQ-RARE #98,564
  • LEN-MEGA 16 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,417
  • PHOTO-FINISH phin

Nearest frequency peer: phin (+2 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “pharmacodynamics”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “pharmacodynamics” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for pharmacodynamics
PropertyValue
Headwordpharmacodynamics
LanguageEnglish
Part of speechNoun
Letters16
Frequency rank#98,564
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “pharmacodynamics” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).pharmacodynamicsfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “phin” (#98,566), “pervious” (#98,561), “phonic” (#98,567). Among 4,417 “P” headwords, “pharmacodynamics” is #98,564. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

pharmacodynamics is uncommon English at frequency #98,564 among 4,417 “P” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The branch of pharmacology that studies the effects and modes of action of drugs upon the body.".

No misspelling variants are generated for pharmacodynamics in our index, suggesting the orthography follows predictable English patterns. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From pharmaco- + dynamics. The correct English form is pharmacodynamics, spelled P-H-A-R-M-A-C-O-D-Y-N-A-M-I-C-S.

Definition

  1. 1
    The branch of pharmacology that studies the effects and modes of action of drugs upon the body.

Etymology

From pharmaco- + dynamics.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "pharmacodynamics"?
"pharmacodynamics" is spelled P-H-A-R-M-A-C-O-D-Y-N-A-M-I-C-S.
What does "pharmacodynamics" mean?
As a noun, "pharmacodynamics" means: The branch of pharmacology that studies the effects and modes of action of drugs upon the body.
What is the origin of the word "pharmacodynamics"?
From pharmaco- + dynamics. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "pharmacodynamics", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 16 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list