13-letter words containing a, r, i, s
- intraspecific — existing or occurring within a species.
- intravasation — the entrance of foreign matter into a blood vessel of the body.
- intravascular — within the blood vessels.
- intravenously — through or within a vein. Abbreviation: IV.
- intricateness — The state or quality of being intricate; intricacy.
- intrinsically — belonging to a thing by its very nature: the intrinsic value of a gold ring.
- introgressant — an individual resulting from introgression
- invertebrates — Zoology. not vertebrate; without a backbone. of or relating to creatures without a backbone.
- investigators — Plural form of investigator.
- investigatory — to examine, study, or inquire into systematically; search or examine into the particulars of; examine in detail.
- ipecac spurge — a spurge, Euphorbia ipecacuanhae, of the eastern U.S.
- ipsilaterally — (anatomy, medicine) On the same side of the body.
- irascibleness — The state of being irascible; irascibility.
- irc penis war — penis war
- irish pennant — an unwhipped rope end.
- irrationalise — Alt form irrationalize.
- irrationalism — irrationality in thought or action.
- irrationalist — One who is irrational in their beliefs or ideas.
- irredeemables — undated government or debenture stock
- irregularness — Quality of being irregular.
- irrelevancies — irrelevance.
- irritableness — Quality of being irritable.
- ishihara test — a test for determining color blindness by means of a series of cards each having colored dots that form one pattern to the normal eye and a different pattern to the eye that is color-blind.
- isle of capri — Capri.
- isoamyl group — the univalent group C 5 H 11 .
- isobarometric — isobaric
- isobathytherm — a line on a chart or diagram of a body of water, connecting depths having the same temperature.
- isocarboxazid — a potent monoamine oxidase inhibitor, C 12 H 13 N 3 O 2 , used to treat severe depression.
- isomerization — (chemistry) the conversion of a compound into a different isomeric form.
- isometrically — of, relating to, or having equality of measure.
- isostructural — (of two substances) having the same crystal structure but not necessarily a similar chemical composition.
- isothermobath — a line drawn on a diagram of a vertical section of the ocean connecting all points having equal temperature.
- italian aster — a composite plant, Aster amellus, of Eurasia, having clustered, purple flower heads.
- jack robinson — Bill ("Bojangles") 1878–1949, U.S. tap dancer.
- japanese iris — a plant, Iris kaempferi, native to Japan, having broad, showy flowers in a variety of colors.
- jasperization — The act or process of jasperizing.
- jesuit's bark — cinchona (def 2).
- johore strait — a narrow strait between Malaya and Singapore Island
- juan carlos i — King (Juan Carlos Alfonso Victor María de Borbón y Borbón) born 1938, Spanish monarch, born in Italy: king since 1975.
- julius caesar — Gaius Julius Caesar.
- justificatory — serving to justify; providing justification.
- justin martyr — Saint, a.d. c100–163? early church historian and philosopher.
- kapellmeister — a choirmaster.
- keratinocytes — Plural form of keratinocyte.
- keratomycosis — Fungal infection of the cornea.
- key signature — (in notation) the group of sharps or flats placed after the clef to indicate the tonality of the music following.
- kick upstairs — to strike with the foot or feet: to kick the ball; to kick someone in the shins.
- kindergartens — Plural form of kindergarten.
- kinesitherapy — a movement-based therapy
- king's ransom — an extremely large amount of money: The painting was sold for a king's ransom.