| ATHERMANOUS | • athermanous adj. Not transmitting heat. • ATHERMANOUS adj. impervious to radiant heat. |
| ATRAMENTOUS | • atramentous adj. Atramental. • ATRAMENTOUS adj. inky black, also ATRAMENTAL. |
| AUTOSAMPLER | • autosampler n. Any of various devices that automate a sampling process. |
| AUXANOMETER | • auxanometer n. An instrument to measure the growth of plants. • AUXANOMETER n. an instrument for measuring growth of plants. |
| ELASMOSAURS | • elasmosaurs n. Plural of elasmosaur. • ELASMOSAUR n. a very long-necked extinct marine reptile, a type of plesiosaur. |
| EMASCULATOR | • emasculator n. One who, or that which, emasculates. • EMASCULATOR n. one who emasculates. |
| GRAMMALOGUE | • grammalogue n. (Shorthand) symbol, letter or letters that stand for a whole word. • GRAMMALOGUE n. a word represented by a single sign. |
| MACROFAUNAE | • macrofaunae n. Plural of macrofauna. • MACROFAUNA n. animals visible to the naked eye. |
| MALONYLUREA | • malonylurea n. Barbituric acid. • MALONYLUREA n. another name for barbituric acid. |
| MEGALOSAURI | • MEGALOSAURUS n. a large dinosaur, also MEGALOSAUR, MEGALOSAURIAN. |
| MEGALOSAURS | • megalosaurs n. Plural of megalosaur. • MEGALOSAUR n. a large dinosaur, also MEGALOSAURIAN, MEGALOSAURUS. |
| MICROFAUNAE | • microfaunae n. Plural of microfauna. • MICROFAUNA n. very small animals. |
| OCEANARIUMS | • oceanariums n. Plural of oceanarium. • OCEANARIUM n. an enclosed part of the sea in which dolphins, porpoises etc. are kept for display. |
| OUTMARRIAGE | • outmarriage n. Marrying outside one’s own ethnic, religious, or social group. • OUTMARRIAGE n. marriage outside the social group. |
| PARAMOECIUM | • paramoecium n. Alternative spelling of paramecium. • PARAMOECIUM n. any freshwater protozoan of the genus Paramecium, having an oval body covered with cilia, also PARAMAECIUM, PARAMECIUM. |
| PORTMANTEAU | • portmanteau n. A large travelling case usually made of leather, and opening into two equal sections. • portmanteau n. (Australia, dated) A schoolbag. • portmanteau n. (Archaic) A hook on which to hang clothing. |
| RHAMNACEOUS | • rhamnaceous adj. Of or pertaining to plants in the family Rhamnaceae, the buckthorns. • RHAMNACEOUS adj. relating to the buckthorn family. |
| SCARAMOUCHE | • Scaramouche prop.n. A roguish clown character from the 16th-century Italian commedia dell’arte. • SCARAMOUCHE n. a bragging cowardly buffoon, also SCARAMOUCH. |
| THAUMATROPE | • thaumatrope n. A toy made of a card with an image on each side; when twirled, the images combine. • thaumatrope n. A zoetrope. • THAUMATROPE n. an optical toy in which pictures on both sides of a card are seen to combine when the card is rotated rapidly. |
| VERUMONTANA | • verumontana n. Plural of verumontanum. • VERUMONTANUM n. a ridge on the male urethra where the duct conveying prostatic fluid, sperm and other fluids enters it. |