absent

English translation: nothing - see explanation

07:47 Jul 7, 2014

English language (monolingual) [PRO]
Law/Patents - Chemistry; Chem Sci/Eng / biochemistry

English term or phrase: absent

1- when the dashed line (------) of Formula (1) is absent, R2A can be selected from an optionally substituted CI -6 alkyl, .................

2- R6A, R7A and R8A can be independently selected from absent, hydrogen, an optionally substituted C2-24 alkenyl, ...................

I believe that absent in the first section means (missing, not found)

In second section, How can I translate absent? Does it mean an absent compound or element? (An explanation needed)

NOTE: 6A, 7A, 8A, etc are superscript.

TIA

Fathy Shehatto KudoZ activity Questions: 302 (none open) (64 closed without grading) Answers: 525 Egypt
Local time: 06:39

Selected answer:nothing - see explanation

Explanation:
It means that it can be one of the things in the list (hydrogen...) or it may not be there at all.

Selected response from:

Terry Richards
France
Local time: 06:39

Grading comment

Thanks Terry!
4 KudoZ points were awarded for this answer

SUMMARY OF ALL EXPLANATIONS PROVIDED

4 +2

nothing - see explanation

Terry Richards

Discussion entries: 4

Answers

10 mins confidence:

peer agreement (net): +2

nothing - see explanation

Explanation:
It means that it can be one of the things in the list (hydrogen...) or it may not be there at all.

Terry Richards
France
Local time: 06:39
Native speaker of:

English
PRO pts in category: 16

Grading comment

Thanks Terry!

Notes to answerer

Asker: Hi Terry, For clarity, I translated absent as "non-existing element or compound" - Do you think this is a good choice?

Asker: Also, I think "nothing" will work.

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English translation: nothing - see explanation

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