As a verb modifying

is present participle of lang=en Altering.

As an adjective semisynthetic is

synthesized by chemically modifying a natural material.

As adjectives the difference between natural and semisynthetic

is that natural is that exists and evolved within the confines of an ecosystem while semisynthetic is (organic chemistry) synthesized by chemically modifying a natural material.

As a noun natural

is .

Semisynthetically is a derived term of semisynthetic.

As an adverb semisynthetically

is in a semisynthetic way; by means of semisynthesis.

As an adjective semisynthetic is

(organic chemistry) synthesized by chemically modifying a natural material.

As nouns the difference between radical and butyldimethylsilyl

is that radical is a member of the most progressive wing of the liberal party; someone favouring social reform (but generally stopping short of socialism) while butyldimethylsilyl is (organic chemistry|especially in combination) the univalent silyl radical containing one butyl and two methyl grups.

As an adjective radical

is favoring fundamental change, or change at the root cause of a matter.

As nouns the difference between butyl and butyldimethylsilyl

is that butyl is (organic chemistry) either of four isomeric univalent hydrocarbon radicals, c₄h₉, formally derived from butane by the loss of a hydrogen atom while butyldimethylsilyl is (organic chemistry|especially in combination) the univalent silyl radical containing one butyl and two methyl grups.

As nouns the difference between methyl and butyldimethylsilyl

is that methyl is methyl while butyldimethylsilyl is (organic chemistry|especially in combination) the univalent silyl radical containing one butyl and two methyl grups.

As a noun calcite

is (geology) a very widely distributed crystalline form of calcium carbonate, caco₃, found as limestone, chalk and marble.

As an adjective calcitic is

pertaining to, resembling, or composed of calcite.

As a noun calvaria

is the dome or roof of the skull.

As an adjective calvarial is

of or pertaining to the calvaria.

As nouns the difference between phytoalexin and camalexin

is that phytoalexin is (medicine) any of several classes of antibiotics produced by plants in response to microorganisms while camalexin is the phytoalexin 3-thiazol-2'yl-indole'' produced by ''arabidopsis plants in response to infection with the bacterial pathogen.

As nouns the difference between arabidopsis and camalexin

is that arabidopsis is any cress (or related plant) of the genus arabidopsis while camalexin is the phytoalexin 3-thiazol-2'yl-indole'' produced by ''arabidopsis plants in response to infection with the bacterial pathogen.