absorb {他動-1} : 吸収する {他動-2} : 
	（光・音・熱・衝撃などを吸収してその強さを）和らげる 
	To suck up; to drink in; to imbibe; as a sponge or as the lacteals of the body.
accrue  {自動} : 増える、To increase
arbitrary  {形} : 気紛れの、自由裁量による、勝手な、
	無原則な Depending on will or discretion; not governed by any fixed rules
attenuation  {名} : 減衰．The act or process of making slender
commence {自動} : 始まる、開始する (v. i.) To have a beginning or origin; 
	to originate; to start;
compilation  {名} : 寄せ集め、編集｛へんしゅう｝、編集物 
	The act or process of compiling or gathering together from various sources.
delineate  {他動} : 描写する、〜の輪郭を描く、絵で表す、線引きする．
	To indicate by lines drawn in the form or figure of; 
	to represent by sketch, design, or diagram; to sketch out; to portray; to picture
devoid  {形} : 欠けている {他動} : 奪うTo empty out; to remove.Void; empty; vacant.
finite  {形} : 限定された、限りある、有限な {名} : 有限（性）
	Having a limit; limited in quantity, degree, or capacity;
impingement {名} : 衝撃 Impinge (v. t.) To fall or dash against; 
	to touch upon; to strike; to hit; to ciash with; -- with on or upon.
perturbation  {名} : 心の動揺、狼狽、混乱、摂動
	A disturbance in the regular elliptic or other motion of a heavenly body, 
	produced by some force additional to that which causes its regular motion; 
	as, the perturbations of the planets are caused by their attraction on each other.
retard {名-1} : 遅らせるもの (v. t.) To keep delaying
sporadically  {副} : 時々、散発的に In a sporadic manner. 
	sporadic=Occuring singly, or apart from other things of the same kind, 
	or in scattered instances
straddle  {自動} : 股を広げて立つ、またぐ、To part the legs wide;
	to stand or to walk with the legs far apart. 
strandline  {名} : 汀線，みぎわせん
tread  {名} : 接地面、踏み面、踏み代、階段の段．To set the foot; to step.