| ambergris | (noun) waxy substance secreted by the sperm whale and found floating at sea or washed ashore; used in perfume | - |
|---|
| angiopteris | (noun) highly variable species of very large primitive ferns of the Pacific tropical areas with high rainfall | Synonyms: Angiopteris evecta, giant fern |
|---|
| clitoris | (noun) a female sexual organ homologous to the penis | Synonyms: button, clit |
|---|
| debris | (noun) the remains of something that has been destroyed or broken up | Synonyms: detritus, dust, junk, rubble |
|---|
| derris | (noun) any of various usually woody vines of the genus Derris of tropical Asia whose roots yield the insecticide rotenone; several are sources of native fish and arrow poisons | - |
|---|
| epacris | (noun) any heathlike evergreen shrub of the genus Epacris grown for their showy and crowded spikes of small bell-shaped or tubular flowers | - |
|---|
| ephemeris | (noun) an annual publication containing astronomical tables that give the positions of the celestial bodies throughout the year | - |
|---|
| femoris | (noun) the longest and thickest bone of the human skeleton; extends from the pelvis to the knee | Synonyms: femur, thighbone |
|---|
| hubris | (noun) overbearing pride or presumption | - |
|---|
| indris | (noun) large short-tailed lemur of Madagascar having thick silky fur in black and white and fawn | Synonyms: indri, Indri brevicaudatus, Indri indri |
|---|
| iris | (noun) diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening | Synonyms: iris diaphragm |
|---|
| (noun) muscular diaphragm that controls the size of the pupil which in turn controls the amount of light that enters the eye; it forms the colored portion of the eye | - |
| (noun) plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals | Synonyms: flag, fleur-de-lis, sword lily |
| kris | (noun) a Malayan dagger with a wavy blade | Synonyms: crease, creese |
|---|
| lecanopteris | (noun) any of several bizarre ferns of the genus Lecanopteris having swollen hollow rhizomes that provide homes for symbiotic ants | - |
|---|
| liparis | (noun) an orchid of the genus Liparis having few leaves and usually fairly small yellow-green or dull purple flowers in terminal racemes | - |
|---|
| naris | (noun) any of the openings to the nasal cavities that allow air to flow through the cavities to the pharynx | - |
|---|
| orris | (noun) German iris having large white flowers with lavender-tinged falls and a fragrant rhizome | Synonyms: Florentine iris, Iris florentina, Iris germanica florentina |
|---|
| (noun) fragrant rootstock of various irises especially Florentine iris; used in perfumes and medicines | Synonyms: orrisroot |
| pecopteris | (noun) Carboniferous fossil fern characterized by a regular arrangement of the leaflets resembling a comb | - |
|---|
| siris | (noun) large spreading Old World tree having large leaves and globose clusters of greenish-yellow flowers and long seed pods that clatter in the wind | Synonyms: Albizia lebbeck, Albizzia lebbeck, siris tree |
|---|
| thyrsopteris | (noun) a terrestrial tree fern of South America | Synonyms: Thyrsopteris elegans |
|---|
| trochlearis | (noun) either of the two cranial nerves on either side that control the superior oblique muscles of the eyes | Synonyms: fourth cranial nerve, trochlear, trochlear nerve |
|---|
| tsoris | (noun) (Yiddish) trouble and suffering | - |
|---|
| tsuris | (noun) (Yiddish) aggravating trouble | - |
|---|
| verdigris | (noun) a green patina that forms on copper or brass or bronze that has been exposed to the air or water for long periods of time | - |
|---|
| (noun) a blue or green powder used as a paint pigment | Synonyms: cupric acetate |