different between pharmaceutical vs rechallenge

English

Etymology

From pharmaceutic +? -al, from Latin pharmaceuticus (“of drugs”), from Ancient Greek ????????????? (pharmakeutikós, “drug maker”).

Pronunciation

• (General American, Canada) IPA^(key): /?f??m??s(j)ut?kl?/
• (Received Pronunciation) IPA^(key): /?f??.m??s(j)u?.t?.kl?/, /?f??.m??kju?.t?.kl?/

Adjective

pharmaceutical (not comparable)

1. (medicine, pharmacy, pharmacology) Of, or relating to pharmacy or pharmacists.

Derived terms

Translations

Noun

pharmaceutical (plural pharmaceuticals)

1. (medicine, pharmacy, pharmacology) A pharmaceutical or pharmacological preparation or product; a drug.

   Synonyms: see Thesaurus:pharmaceutical

Derived terms

Further reading

• pharmaceutical on Wikipedia.Wikipedia

English

Etymology

re- +? challenge

Verb

rechallenge (third-person singular simple present rechallenges, present participle rechallenging, simple past and past participle rechallenged)

1. To challenge again.
2. To challenge in return.
3. (medicine, pharmacology) To try a therapeutic pharmaceutical drug, suspected allergen, or medical treatment on a patient a second or subsequent time, to see if the suspected effects of the treatment occur again. This is typically performed to confirm allergic or adverse reactions to allergens or medications, but may also be used to confirm beneficial treatments or to retry a probable beneficial treatment which did not appear to be effective previously.

Noun

rechallenge (plural rechallenges)

1. A challenge made in return.
2. (medicine, pharmacology) The event of a rechallenge as above.