ACE 5 



bot. , applied to the embryo of the 

 Crueiferse when the cotyledons lie 

 on their edges ; applied to the 

 folded radicle: accument, a., ok- 

 um'-Znt, in bot., lying against 

 another body. 



acephalia, n., cis'-Z-fdl'-i-a (Gr. a, 

 without ; kephale, the head), the 

 condition of a monster without a 

 head: acephalous, a., ds-ef-al-us, 

 not possessing a distinct head. 



Aceracese, n. plu., ds-er-d'sZ-e 

 (L. deer, a maple tree), the 

 maple family, including the syca- 

 more and Scotch plane tree : Acer, 

 n., ds'er, a genus of trees, for the 

 most part beautiful and of con- 

 siderable size : Acer saccharinum, 

 sak'-kdr-in'-um (L. saccharon, 

 sweet juice, sugar), the sugar 

 maple of America: aceric, a., 

 dS'er'-ik, denoting an acid found 

 in its juice. 



acerose, a., ds'er-oz, and acerous, 

 a., ds'-er-us (L. deer, sharp- 

 pointed, dceris, gen.), having a 

 sharp point; narrow and slender. 



acervuli, n. plu., ds-Zrv'-ul-i (L. 

 dsc&rvus, a heap), in bot., small 

 heaps or clusters. 



acetabulum, n., ds'-et-ab'-ul-um (L. 

 acetdbulum, a sucker, a vinegar 

 cruet, a cup-shaped vessel), the 

 cup-shaped socket of the hip- 

 joint ; the socket of the innom- 

 inate bone which receives the 

 head of the femur ; one of the cup- 

 like sucking discs on the arms of 

 the cuttle-fish: acetabula, n. plu. , 

 as'-et'db'ul'd, the sockets of the 

 hip-joints ; the suckers of the 

 cuttle-fishes : acetabuliform, a., 

 as'-et-ab-ul'-i-ftirm (L. forma, 

 shape), in the form of a cup. 



acetic, a., as-Ztf-ik (L. acetum, 

 vinegar), denoting an acid ; vine- 

 gar: acetate, n., ds'-et-at, the 

 combination of acetic acid with 

 a salifiable base. 



acheilary, a., a-kil'-dr-i (Gr. a, 

 without ; cheilos, a lip), in bot., 

 having the labellum undeveloped, 

 as in some orchids. 



ACH 



achene, n^dk-en'-e', alsoachaenium, 

 n., tik'Sn't'tim; achasnia, plu. 

 (Gr. achanes, not gaping, not 

 opening the mouth from a, not; 

 chaino, I yawn or crack, as ripe 

 fruit), a monospermal seed-vessel 

 which does not open or crack, 

 whose pericarp does not adhere to 

 the seed: achenodium, n., dk^en- 

 od'i-tim (the Latinised suffix, ode, 

 signifying 'fulness of), a fruit 

 composed of many achsenia. 



Achillis tendo, ak-il'.lis tZnd'-o 

 (L. tendo, a tendon ; Achillis, of 

 Achilles), the vulnerable tendon 

 or part in the heel of Achilles ; 

 the united strong tendon of 

 the gastrocnemius and solseus 

 muscles. 



achinienes, n., akf-i-men'ez (a word 

 of unknown meaning, originally 

 given by Dr. Patrick Browne), an 

 elegant and free-flowering genus 

 of plants, Ord. Gesneracese. 



achlamydeous, a., ak'-ldm'id'e'US 

 (Gr. a, without ; chlamus, a loose 

 warm cloak), in bot., having no 

 floral envelope ; denoting naked 

 flowers : Achlamydeaa, n. plu., 

 dk'-ldm'id^e'e, the class of naked 

 flowers having only the essential 

 organs and no floral envelope. 



acholia, n., d'kol'i-d (Gr. a, with- 

 out ; chole, bile), absence or defici- 

 ency of bile, occurring in acute 

 atrophy of the liver. 



Achras, n., dk'-rds (Gr. achras, a 

 species of wild pear tree, its fruit), 

 a genus of trees of the sapotacese 

 or sapadilla family, some of which 

 yield edible fruits. 



achroma, n., ak-rom'-a (Gr. a, 

 without ; chroma, colour), a defici- 

 ency in the colour of the skin : 

 achromatic, a., d&rdm-dtfik, free 

 from colour ; applied to lenses 

 which show objects without any 

 prismatic colours ; achromatism, 

 n., dk-rftm'dt'izm, the state of 

 optical instruments which show 

 objects without prismatic colours : 



(Gr. opsis, sight), incapacity of 



