As verbs the difference between infiltrate and introgress

is that infiltrate is to surreptitiously penetrate, enter or gain access while introgress is (biology|genetics) to infiltrate the genes of one species into the gene pool of another through repeated backcrossing of an interspecific hybrid.

As a noun genes

is .

As a verb introgress is

(biology|genetics) to infiltrate the genes of one species into the gene pool of another through repeated backcrossing of an interspecific hybrid.

As a noun species

is .

As a verb introgress is

(biology|genetics) to infiltrate the genes of one species into the gene pool of another through repeated backcrossing of an interspecific hybrid.

As a verb ant

is .

As a noun hymenopteran is

(biology) any insect of the order hymenoptera ; the bees, wasps and ants etc.

As an adjective hymenopteran is

characteristic of these insects.

As nouns the difference between hypha and hyphopodium

is that hypha is (mycology) any of the long, threadlike filaments that form the mycelium of a fungus while hyphopodium is (biology) a hypha, in some ectoparasitic fungi, having a haustorium.

As an adjective ectoparasitic

is of or pertaining to ectoparasites.

As a noun hyphopodium is

(biology) a hypha, in some ectoparasitic fungi, having a haustorium.

As nouns the difference between haustorium and hyphopodium

is that haustorium is a root of a parasitic plant modified to take nourishment from its host while hyphopodium is a hypha, in some ectoparasitic fungi, having a haustorium.

As a noun ectoparasite

is a parasite that lives on the surface of a host organism; such as the demodex mite which lives in human hair and eyelashes.

As an adjective ectoparasitic is

of or pertaining to ectoparasites.

As nouns the difference between alloyant and inoculant

is that alloyant is (metallurgy) a material added to a metal (possibly itself an alloy) to alter its properties while inoculant is the active material used in an inoculation; an inoculum.

As nouns the difference between grain and inoculant

is that grain is hate, hatred, disgust while inoculant is the active material used in an inoculation; an inoculum.