| actinomyxidian | (noun) of or relating to parasites of worms | - |
|---|
| antemeridian | (adjective) before noon | - |
|---|
| arachnidian | (adjective) relating to or resembling a member of the class Arachnida | Synonyms: arachnoid, spiderlike, spiderly, spidery |
|---|
| arcadian | (adjective) (used with regard to idealized country life) idyllically rustic | Synonyms: bucolic, pastoral |
|---|
| ascidian | (noun) minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves | - |
|---|
| circadian | (adjective) of or relating to biological processes occurring at 24-hour intervals | - |
|---|
| comedian | (noun) a professional performer who tells jokes and performs comical acts | Synonyms: comic |
|---|
| (noun) an actor in a comedy | - |
| custodian | (noun) one having charge of buildings or grounds or animals | Synonyms: keeper, steward |
|---|
| euclidian | (adjective) relating to geometry as developed by Euclid | Synonyms: euclidean |
|---|
| guardian | (noun) a person who cares for persons or property | Synonyms: defender, protector, shielder |
|---|
| haemosporidian | (noun) minute protozoans parasitic at some stage of the life cycle in blood cells of vertebrates including many pathogens | - |
|---|
| haplosporidian | (noun) parasite in invertebrates and lower vertebrates of no known economic importance | - |
|---|
| median | (adjective) relating to or situated in or extending toward the middle | Synonyms: medial |
|---|
| (adjective) dividing an animal into right and left halves | Synonyms: medial |
| (adjective) relating to or constituting the middle value of an ordered set of values (or the average of the middle two in a set with an even number of values) | Synonyms: average |
| (noun) the number midway between the two middle numbers in a series containing an even or odd number of items | Synonyms: median value |
| meridian | (adjective) of or happening at noon | - |
|---|
| (adjective) being at the best stage of development | Synonyms: prime |
| (noun) an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator | Synonyms: line of longitude |
| (noun) the highest level or degree attainable; the highest stage of development | Synonyms: acme, elevation, height, peak, pinnacle, summit, superlative, tiptop, top |
| microradian | (noun) a unit of angular distance equal to one thousandth of a milliradian | - |
|---|
| microsporidian | (noun) parasite of arthropods and fishes that invade and destroy host cells | - |
|---|
| milliradian | (noun) a unit of angular distance equal to one thousandth of a radian | - |
|---|
| myxosporidian | (noun) mostly parasitic in fishes and including various serious pathogens | - |
|---|
| obsidian | (noun) acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces | - |
|---|
| ophidian | (noun) limbless scaly elongate reptile; some are venomous | Synonyms: serpent, snake |
|---|
| postmeridian | (adjective) after midday | - |
|---|
| proboscidian | (noun) massive herbivorous mammals having tusks and a long trunk | Synonyms: proboscidean |
|---|
| quotidian | (adjective) found in the ordinary course of events | Synonyms: everyday, mundane, routine, unremarkable, workaday |
|---|
| radian | (noun) the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees) | Synonyms: rad |
|---|
| sarcosporidian | (noun) parasite of the muscles of vertebrates | Synonyms: sarcocystidean, sarcocystieian |
|---|
| steradian | (noun) the unit of solid angle adopted under the Systeme International d'Unites | Synonyms: sr |
|---|
| tragedian | (noun) an actor who specializes in tragic roles | - |
|---|
| (noun) a writer (especially a playwright) who writes tragedies | - |