berm — a narrow path or ledge at the edge of a slope, road, or canal
firm — not soft or yielding when pressed; comparatively solid, hard, stiff, or rigid: firm ground; firm texture.
germ — a microorganism, especially when disease-producing; microbe.
herm — a monument consisting of a four-sided shaft tapering inward from top to bottom and bearing a head or bust; those of Hermes usually had an erect penis, which passersby stroked for luck.
term — a word or phrase that has a specific or precise meaning within a given discipline or field and might have a different meaning in common usage: Set is a term of art used by mathematicians, and burden of proof is a term of art used by lawyers.
therm — any of several units of heat, as one equivalent to 1000 large calories or 100,000 British thermal units.
thurm — to carve (a piece of wood, as a post or table leg) across the grain so as to produce an effect of turning.
confirm — If something confirms what you believe, suspect, or fear, it shows that it is definitely true.
infirm — feeble or weak in body or health, especially because of age; ailing.
long-term — covering a relatively long period of time: a long-term lease.
middle term — Logic. an argument the conclusion of which is supported by two premises, of which one (major premise) contains the term (major term) that is the predicate of the conclusion, and the other (minor premise) contains the term (minor term) that is the subject of the conclusion; common to both premises is a term (middle term) that is excluded from the conclusion. A typical form is “All A is C; all B is A; therefore all B is C.”.
red worm — North Central, South Midland, and Southern U.S. an earthworm.
wheat germ — the embryo or nucleus of the wheat kernel, used in or on foods as a concentrated source of vitamins.
Three-syllable rhymes
army worm — any of the larvae of certain noctuid moths, esp. of the moth (Pseudaletia unipuncta) of which the caterpillar is dark-striped green and yellow: these larvae travel in large groups, ruining crops and grass
bladder worm — an encysted saclike larva of the tapeworm. The main types are cysticercus, hydatid, and coenurus
guinea worm — a long, slender roundworm, Dracunculus medinensis, parasitic under the skin of humans and animals, common in parts of India and Africa.
major term — Logic. an argument the conclusion of which is supported by two premises, of which one (major premise) contains the term (major term) that is the predicate of the conclusion, and the other (minor premise) contains the term (minor term) that is the subject of the conclusion; common to both premises is a term (middle term) that is excluded from the conclusion. A typical form is “All A is C; all B is A; therefore all B is C.”.
peanut worm — any small, unsegmented, marine worm of the phylum Sipuncula, that when disturbed retracts its anterior portion into the body, giving the appearance of a peanut seed.
railroad worm — the larva of a fruit fly, Rhagoletis pomonella, that burrows through apples, forming tunnels that sometimes appear on the skin as faint depressions or darkened trails: a serious pest of apples in colder regions of North America.
reaffirm — to state or assert positively; maintain as true: to affirm one's loyalty to one's country; He affirmed that all was well.
reconfirm — to establish the truth, accuracy, validity, or genuineness of; corroborate; verify: This report confirms my suspicions.
ribbon worm — any of various slender, unsegmented marine worms of the phylum Nemertea, being able to contract and stretch to an extreme extent.
tongue worm — any wormlike invertebrate of the phylum Pentastomida (or subphylum of Arthropoda), having two pairs of hooks at the sides of the mouth: all are parasitic, some in the respiratory tracts of mammals.
Four-or-more syllable rhymes
measuring worm — the larva of any geometrid moth, which progresses by bringing the rear end of the body forward and then advancing the front end.