semisynthetic

Half natural, half-made

Semisynthetic describes substances that are partly natural and partly artificial—typically a natural compound that has been chemically modified.

The term appears most often in pharmacology, where semisynthetic drugs like heroin (derived from morphine) or many antibiotics start from natural sources but undergo laboratory alteration to enhance effectiveness or reduce side effects: semisynthetic penicillins.

antibiotics

penicillin

Fungus-derived infection fighter

amoxicillinPenicillin-type bacteria killer
ampicillinBroad-spectrum bacterial fighter
methicillinSynthetic penicillin antibiotic

cephalosporins · doxycycline · tetracycline · azithromycin · clarithromycin · erythromycin · clindamycin · vancomycin · clavulanic acid

hybrid

modified

Changed in some way

derivedObtained from a source
engineeredDesigned with technical precision
processedSubjected to operations

altered · transformed · converted · analog · derivative

biotech

recombinant DNA

Lab-fused genetic sequences

fermentationMicrobial sugar conversion
cell cultureLaboratory technique for growing tissue
bioreactorsTanks for biological reactions

biopolymers · derivatives · active ingredients · natural products

materials

rubber

Elastic polymer from trees

fibersThreadlike structural strands
polymersLarge chain-like molecules
opioidsReceptor-binding pain relievers

steroids · cannabinoids

Opposites

degree of human modification

semisyntheticnatural

Not artificially produced

synthetic · artificial · man-made · unprocessed · unmodified

purity of origin

semisyntheticnatural

Not artificially produced

all-natural · unaltered · pure · unadulterated · native

Family

synthetic, semi, synthesis, synthesize, synthesizer, synthesized, synthetics, synthesizing, photosynthesis

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