As an adjective genetic

is genetic.

As a noun brachyury is

(biology) the presence of an abnormally short tail in some animals as a result of a genetic mutation.

As a verb perforate

is to pierce; to penetrate.

As an adjective perforate

is (philately) perforated.

As a noun piercer is

an instrument that pierces or perforates, such as a stiletto or piercel.

As nouns the difference between stiletto and piercer

is that stiletto is a short sharp knife or dagger-like weapon intended for stabbing while piercer is an instrument that pierces or perforates, such as a stiletto or piercel.

As an adjective stiletto

is sharp and narrow like a stiletto.

As a verb stiletto

is to attack or kill with a stiletto (dagger).

Piercer is a synonym of piercel.

As nouns the difference between piercel and piercer

is that piercel is a kind of gimlet for making vents in casks while piercer is an instrument that pierces or perforates, such as a stiletto or piercel.

In zoology|lang=en terms the difference between ovipositor and piercer

is that ovipositor is (zoology) a tubular protruding organ for laying eggs while piercer is (zoology) any insect provided with an ovipositor.

As nouns the difference between ovipositor and piercer

is that ovipositor is (zoology) a tubular protruding organ for laying eggs while piercer is an instrument that pierces or perforates, such as a stiletto or piercel.

As nouns the difference between sting and piercer

is that sting is a bump left on the skin after having been stung while piercer is an instrument that pierces or perforates, such as a stiletto or piercel.

As a verb sting

is to hurt, usually by introducing poison or a sharp point, or both.

As nouns the difference between insect and piercer

is that insect is an arthropod in the class Insecta, characterized by six legs, up to four wings, and a chitinous exoskeleton while piercer is an instrument that pierces or perforates, such as a stiletto or piercel.

As a noun autophagia

is the eating of one's own body.

As an adjective autophagic is

of or pertaining to autophagia / autophagy.

As a noun autophagy

is (biology) the process of self-digestion by a cell through the action of enzymes originating within the same cell often a defensive and/or self-preservation measure.

As an adjective autophagic is

of or pertaining to autophagia / autophagy.

As nouns the difference between animal and bilaterian

is that animal is in scientific usage, a multicellular organism that is usually mobile, whose cells are not encased in a rigid cell wall (distinguishing it from plants and fungi) and which derives energy solely from the consumption of other organisms (distinguishing it from plants) while bilaterian is (biology) any animal that has bilateral symmetry, collectively grouped in the clade bilateria.

As an adjective animal

is of or relating to animals.